Research

Dr. Manoranjan Kar
 
Dr. Manoranjan Kar
Associate Professor
Ph.D, IIT Guwahati
Ph: +91-612-302 8013
Fax: +91-612-227 7383
mano[*AT]iitp.ac.in
Google Scholar: https://scholar.google.co.in/citations?user=7RrdmBsAAAAJ&hl=en
                              https://www.researchgate.net/profile/Manoranjan_Kar
Download : CV
Research Areas : Nanomaterials, Magnetic Alloys and Oxide materials, Energy materials, Multiferroics, Magneto-Electric, Polymer-ceramic nanocomposite {Journal publications: >170, Conference proceedings: >54, conference Presentation: >100: Invited talk: >65, Patent: 02, Award: 02, Projects: 07}
Patents :
  • Pawan Kumar and Manoranjan Kar, A method for the synthesis of pure phase multiferroic bismuth ferrite, BiFeO3 (BFO) ceramics, 201631037965 Dated 07-11-2017
  • Akshay Saxena and Manoranjan Kar, Multiple materials coating on flat surfaces in enclosed environment, 201931018390 dated 08/5/2019 [Patent no.: 407105] (Granted)
Research and Development :
Area of ExpertiseResearch and Development activities & Significant recent contributions
Magnetic materials, Nanostructured ferrites, Multiferroic Materials, Composites. Recently, we have standardized the method of preparation for pure phase Bismuth Ferrite. The crystal structure and magnetic phase diagram for co-doped bismuth ferrite has been demonstrated. We have successfully shown the ferromagnetic contribution in Bismuth Ferrite by Arrot plot technique. Quantification of mixed crystal phase in the bismuth ferrite has been demonstrated by XRD and neutron diffraction. We have calculated the anisotropy of cobalt ferrite nanoparticle which will help to use the cobalt ferrite in the industry.
Magnetocalloric Effect (MCE) Currently we are working on magnetocaloric effect of Ni and Mn based Heusler alloys across their first or, second order magnetic phase transitions. We are mainly focusing on the development of environment-friendly, non-toxic, and cost-effective magnetic refrigerants with large magnetocaloric parameters such as Isothermal magnetic entropy change (ΔSM) & Adiabatic temperature change (ΔTad). These parameters are extracted indirectly from the iso-thermal magnetic and iso-field heat capacity measurements.
Electrocalloric Effect (ECE) We are working on the Electrocaloric effect on lead-free perovskite materials. The electrocaloric effect is generally governed by two important parameters i.e. Isothermal entropy change (∆𝑆) and adiabatic temperature change (∆T). Here, these parameters were calculated by using the indirect method.
Permanent Magnets Permanent magnets are those materials that generate the magnetic field by the internal structure of materials. The magnetic field generated by materials is the sum of electron spin and orbits of electrons. Generally, permanent magnets have large coercivity and high remanent magnetization. Barium hexaferrite is one of the oxide materials which have both properties. The strength of permanent magnets represents in terms of (BH)max. we are trying to improve the magnetic energy product of barium hexaferrite by making the composite with other soft magnetic materials through the exchange spring phenomenon. We are demonstrating different applications of magnetic materials.
Magnetoelectric composite Our research group is actively engaged to develop composite for magnetoelectronic applications.
Polymer composite Enhancement of dielectric constant has been demonstrated by our research group in the polymer-ceramic nanocomposite for energy storage application. Several other phenomena are demonstrated and we are actively working on developing the ceramic-polymer nanocomposite.
Correlation between magnetic dipole polarization Our research group has reported physical properties correlation in the material. The correlation between crystal structure and magnetic/electric properties of the material. Also, we have observed the correlation between the magnetic and electric properties of the material.
Current Sponsored Projects :
TitlePrincipal InvestigatorSponsored byDurationCost
Development of geometrical compatibility across the magneto-structural transition for giant reversible magnetocaloric effect in Mn-Ni-Si alloy. Dr. Manoranjan Kar SERB, DST 3 Years (2023-26) Rs. 40.99832 lakhs
Crystal and magnetic structure study on co-doped SrFe12O19 & its magneto-electric properties. Dr. Manoranjan Kar UGC, DAE 3 years (2021-2024) Rs. 1, 35,000
Microwave shielding of quaternary composites for the aerospace industry. Dr. Manoranjan Kar DRDO, Government of India  3 years (2021-2024) Rs. 15,83,146 lakhs
Respect Bihar (Revitalization of Physics education through concept-oriented teaching in Bihar)  Dr. Manoranjan Kar Bihar Education Project Council  3 years (2020-2023)  239 Lacs
Setting up of an advanced multimode scanning probe microscopy facility for device applications  Dr. Manoranjan Kar DST under FIST program, Government of India  5 years (2019-2024)  269 Lakhs
Tailoring magnetic properties of bimagnetic core/shell nanoparticles for soft magnetic applications Dr. Manoranjan Kar DAE, BRNS, Government of India 3 Years  
Tuning of FM-AFM Exchange Interactions on Magnetic Nanocrystalline Materials for Soft Magnetic Applications Dr. Manoranjan Kar DST, Government of India 3 Years  
FerrimagneticNanocrystalline arrays in ferroelectric or conducting polymer for soft magnetic application Dr. Manoranjan Kar CSIR, Government of India 3 Years  
Courses taught at IITP : Undergraduate level:
  • PH102: Physics – II
  • PH110: Physics Lab
  • PH103: Physics 1
  • PH401: Introduction to Nanomaterials
  • PH 201: Vacuum Science and Techniques
  • PH001: Preparatory Physics – I
  • PH002: Preparatory Physics - II
  • PH110: B. Tech (1st Year) Physics Practical
Postgraduate level:
  • PH703: Quantum Mechanics and Statistical Mechanics
  • PH704: Experimental Techniques and Scientific Presentation
  • PH513: Magnetism at Nanoscale
  • NT502: Analytical Technique
  • PH 707: Magnetism and superconductivity
  • PH 523: Solid state Physics
  • PH 605: Introduction to Medical Physics
Ph.D. Students :
Completed (02), Submitted (0), Writing (02), On-going (07)
PhD Students(ongoing)
PhD Students(Completed)
Project Staff

Amar Dev (Ph.D, Ongoing)

Postdoctoral Scholar


Nawnit Kumar
SERB-National Post-Doctoral Fellowship (N-PDF), Under ( May-2017, Continue)


M. Tech.(Nanoscience and Nanotechnology) Students
  • Laser Kanan Pahari (Degree Awarded)
  • Aswani M. Goswami (Degree Awarded)
  • Rabichandra Pandey (Degree Awarded)
  • Lagen Kumar Pradhan (Degree Awarded)
  • Rinkal Kanani (Degree Awarded)
  • Akshay Saxena (Degree Awarded)
  • Dewanand pandit (Degree Awarded)
  • Rohit (Degree Awarded)
  • Nikhil (Degree Awarded)
  • Ankush Kumar Bharti (Degree Awarded)
  • Muddam Raja Sekhar (Degree Awarded)

M. Sc. (Physics)
  • Ramankanta Sethi (Completed)
  • Manavendra Pratap Singh (Completed)
  • Vijay Kumar (Completed)
  • Abdul Alim (Completed)
  • Rajendra Kumar Meena (Completed)
  • Sipan Majumdar(ongoing)
  • Shubham Dheke (ongoing)
  • Avesh Nayak(ongoing)
  • Akash Mondal(ongoing)

Summer Internship
  • Sanjeet Singh, M.Sc, IIT Dhanbad (2014)
  • Randhir Singh, Integrated M.Sc, IISER Kolkata (2015 )
  • Shubham Srivathav, Integrated M.Sc, IISER Kolkata (2015)
  • Sashi Kumar, M.Sc IIT Dhanbad( 2016)
  • Shubham Sinha, Integrated M.Sc , IISER Tirupati, 2017
  • Diksha Kumari, M.Sc, BIT Mesra, 2017
  • Babaji Charan Sahoo, M. Sc, Govt. Auto college Rourkela (2018)
  • Parthasarathi Parida, M. Sc, Govt. Auto college Rourkela (2018)
  • Nilesh, 5yrs Integrated M. Tech in nanotechnology, Central University Jharkhand (2018)
  • Adwaita Sr Nair, 5yrs Integrated M. Tech in nanotechnology, Central University Jharkhand (2018)
Professional Experience :
  • Asso. Professor IIT Patna 17th  Dec 2015 (Teaching & Research, continuing)
  • Asst. Professor IIT Patna 10th  Dec 2008-16th Dec 2015
  • Asst. Professor TITE BBSR 1st  Sept - 10th  Dec 2008
  • Scientific Officer Centre for Nanotechnology, IIT Guwahati 31st  Dec 2004 - 31st   Aug 2008
  • Project Assistant Scientist Dept. of Physics, IIT Guwahati July 2004 - Dec 2004
Awards & Honours :
  • DAE Young Scientist Research Award
  • DST Young Scientist Research Award
  • IAPT Best Teacher Award (2018)
Administration :
  • PIC school: IIT Patna (present)
  • Chairman Hostel: IIT Patna (present)
  • PIC library: IIT Patna (present)
  • Associate Dean, Student Affairs: IIT Patna, Since April-2019
  • Faculty in charge (Nanoscience and technology M. Tech. Program): IIT Patna, Since April-2018
  • Associate Dean, Faculty Affairs: IITP, Since January-2016 – March-2017.
  • Coordinator: School of Basic Science, IIT Patna, Since March-2015 – Dec 2016
  • Faculty in-charge: Institute lecture, IIT Patna, Since Jan-2014
  • Coordinator, Preparatory course: IIT Patna, Since Jan-2014
  • Coordinator, Department of Physics: IIT Patna, Jan-2013 till Dec. 2013
  • Faculty in-charge Library: Dec-2008 to Dec-2012
  • Library in-charge: Sep 2008 to Nov 2008, TITE Bhubaneswar.
Member, Editorial Board : ISST Journal of Applied Physics (IJAP)
Publications : Peer Reviewed Journal Publications:

2023

  • Narzary, R., B. Dey, Sushree Nibedita Rout, A. Mondal, G. Bouzerar, Manoranjan Kar, S. Ravi, and S. K. Srivastava. "Influence of K/Mg co-doping in tuning room temperature d0 ferromagnetism, optical and transport properties of ZnO compounds for spintronics applications." Journal of Alloys and Compounds 934 (2023): 167874.
  • Dey, B., Sushree Nibedita Rout, Manoranjan Kar, and S. K. Srivastava. "Room Temperature d0 Ferromagnetism of Ag: ZnO Compounds." Journal of Superconductivity and Novel Magnetism (2023): 1-7.
  • Datta, Subhadeep, Murli Kumar Manglam, Shantanu Kumar Panda, Anant Shukla, and Manoranjan Kar. "Investigation of crystal structure and magnetic properties in magnetic composite of soft magnetic alloy and hard magnetic ferrite." Physica B: Condensed Matter (2023): 414675
  • Dey, B., Shantanu Kumar Panda, Jyotirekha Mallick, Santanu Sen, B. N. Parida, A. Mondal, Manoranjan Kar, and S. K. Srivastava. "Observation of room temperature d0 ferromagnetism, bandgap narrowing, zero dielectric loss, dielectric enhancement in highly transparent p-type Na-doped rutile TiO2 compounds for spintronics applications." Journal of Alloys and Compounds 930 (2023): 167442.

2022

  • Panda, Shantanu Kumar, Jyotirekha Mallick, Subhadeep Datta, Sambit Kumar Biswal, Shampa Guha, and Manoranjan Kar. "Large Magnetocaloric Effect near Room-temperature by Tuning the Magneto-structural Transition in (Mn, Fe)(Ni, Fe) Si Alloy." Physica Scripta (2022).
  • Gupta, Akanksha, Manoranjan Kar, and P. K. Roy. "Substitutional effect of Ni-Al in electromagnetic properties of Sr-hexaferrite based non-rare earth magnet with high energy density for motor applications." Materials Chemistry and Physics 292 (2022): 126842.
  • Ghosh, Surajit, Satayender Sangwan, Sourav Mandal, Subhadeep Datta, Manoranjan Kar, Prajyoti Singh, and T. K. Nath. "Room temperature giant magneto-caloric effect in Ni45Mn44Sn11-XInX (X= 1, 3) disordered Heusler alloy: The role of martensite transition." Journal of Magnetism and Magnetic Materials 562 (2022): 169797.
  • Kumar, Sunil, and Manoranjan Kar. "Magnetic phase diagram of BHF-NZFO composite at room temperature." Ceramics International 48.20 (2022): 30574-30581.
  • Manglam, Murli Kumar, and Manoranjan Kar. "Tuning of reduced remanent and (BH) max by exchange spring phenomenon in ferrimagnetic composite." Journal of Magnetism and Magnetic Materials 560 (2022): 169569.
  • Mallick, Jyotirekha, Murli Kumar Manglam, Lagen Kumar Pradhan, Shantanu Kumar Panda, and Manoranjan Kar. "Electrocaloric effect and temperature dependent scaling behaviour of dynamic ferroelectric hysteresis studies on modified BTO." Journal of Physics and Chemistry of Solids 169 (2022): 110844.
  • Guha, Shampa, Subhadeep Datta, Shantanu Kumar Panda, and Manoranjan Kar. "Critical Behavior and Magnetocaloric Effect in Co2CrAl Heusler Alloy." physica status solidi (b) 259, no. 10 (2022): 2100533.
  • Guha, S., Datta, S., Panda, S. K., & Kar, M. (2022). Semiconducting nature, magnetic critical exponent, and magnetocaloric effect study near room temperature on FeMnAl alloy. Materials Science and Engineering: B, 283, 115817.
  • Dey, B., R. Narzary, Shantanu Kumar Panda, Jyotirekha Mallick, A. Mondal, S. Ravi, Manoranjan Kar, and S. K. Srivastava. "Room temperature d0 ferromagnetism, band-gap reduction, and high optical transparency in p-type K-doped ZnO compounds for spintronics applications." Materials Science in Semiconductor Processing 148 (2022): 106798.
  • Paswan, Sanjeet Kumar, Lagen Kumar Pradhan, Pawan Kumar, Suman Kumari, Manoranjan Kar, and Lawrence Kumar. "Electrical transport properties of nanocrystalline and bulk nickel ferrite using complex impedance spectroscopy: a comparative study." Physica Scripta 97, no. 9 (2022): 095812.
  • Samdarshi, S. K., Agrawal, A. K., Chauhan, S., Singh, R. K., Kar, M., Kumar, J., & Jaiswal, S. K. (2022). Oxygen vacancies induce changes in lattice parameter, photoluminescence characteristics and Raman spectra of sol–gel derived fluorite-type cubic CeO2 and Ce0. 8Zr0. 2− x A x O2 (A= Co/Fe, x= 0–0.2) powders. Applied Physics A, 128(8), 712.
  • Sinha R, Kumar R, Abhishek K, Shang J, Bhattacharya S, Sengupta S, Kumar N, Singh RK, Mallick J, Kar M, Sharma P. Single-step synthesis of activated magnetic biochar derived from rice husk for hexavalent chromium adsorption: equilibrium mechanism, kinetics, and thermodynamics analysis. Groundwater for Sustainable Development. 2022 Aug 1;18:100796.
  • Pradhan, L. K., Mallick, J., Shukla, A., Manglam, M. K., Kumar, P., Kour, P., & Kar, M. (2022). Reduction of depolarization field effect on ferroelectric switching process in semiconductor–relaxor ferroelectric composite. Journal of Applied Physics, 131(15), 154102.
  • Manglam, Murli Kumar, and Manoranjan Kar. "Effect of Gd doping on magnetic and MCE properties of M-type barium hexaferrite." Journal of Alloys and Compounds 899 (2022): 163367.
  • M. K. Manglam, S. Kumari, J. Mallick, A. Shukla and M. Kar, Magnetic interaction between soft and hard ferrimagnetic phases in BaFe12O19 + CuFe2O4 composite, Phys. Scr. 97, 035809 (2022). Impact Factor: 3.08
  • L. K. Pradhan, J. Mallick, A. Shukla, M. K. Manglam, Pawan Kumar, Paramjit Kour, and M. Kar, Reduction of depolarization field effect on ferroelectric switching process in semiconductor–relaxor ferroelectric composite, J. Appl. Phys. 131, 154102 (2022). Impact Factor: 2.878
  • R. Sinha, R. Kumar, K. Abhishek, J. Shang, S. Bhattacharya, S. Sengupta, Nishant Gupta, R. K. Singh, J. Mallick, M. Kar, P. Sharma, Single-step synthesis of activated magnetic biochar derived from rice husk for hexavalent chromium adsorption: Equilibrium mechanism, kinetics, and thermodynamics analysis, Groundwater for Sustainable Development, 18, 100796 (2022). Impact Factor: 5.213
  • B. Dey, R. Narzary, Shantanu Kumar Panda, J. Mallick, A. Mondal, S. Ravi, M. Kar, and S.K. Srivastava, Room temperature d0 ferromagnetism, band-gap reduction, and high optical transparency in p-type K-doped ZnO compounds for spintronics applications, Materials Science in Semiconductor Processing, 148, 106798 (2022). Impact Factor: 3.927
  • J. Mallick, M. K. Manglam, L. K. Pradhan, S. K. Panda, and M. Kar, Electrocaloric effect and temperature dependent scaling behavior of dynamic ferroelectric hysteresis studies on modified BTO, Journal of Physics and Chemistry of Solids, 169, 110844 (2022). Impact Factor: 3.995
  • M.K. Manglam, M. Kar, Tunning of reduced remanent and energy product through exchange spring phenomenon in ferrimagnetic composites, J. Magn. Magn. Mater, 560, 169569 (2022). Impact Factor: 2.993
  • M.K. Manglam, M. Kar, Effect of Gd doping on magnetic and MCE properties of M-type barium hexaferrite, J. Alloys Compound, 899, 163367 (2022). Impact Factor: 6.316
  • Structural and magnetic property analysis of bulk and nanocrystallite Ni1.8Mn1.2Sn Heusler alloy, S. Datta, S. Guha, S. K. Panda, M. Kar, J. Magn. Magn. Mat. 544, 168656 (2022). Impact Factor: 2.993
  • S. Kumari, M.K. Manglam, L. Kumar, M. Kar, Magnetic properties and hyperthermia action of cobalt zinc ferrite fibers, Journal of Sol-gel Sci. Tech. 101, 546-561 (2022). Impact Factor: 2.326

2021

  • S.K. Panda, S. Datta, S. Guha, J. Mallick, and M. Kar, Sweep-Rate Dependence of the Large Magnetocaloric Effect across the Magnetostructural Transition in the Mn0.6Fe0.4(Ni,Co)Si System, Phys. Rev. Appl. 16, 064027 (2021) (DOI: 10.1103/PhysRevApplied.16.064027).
  • L. Chouhan, R. Narzary, B. Dey, S.K. Panda, M.K. Manglam, L. Roy, A. Mandal, M. Kar, S. Ravi, S.K. Srivastva, Tailoring room temperature d0 ferromagnetism, dielectric, optical, and transport properties in Ag-doped rutile TiO2 compounds for spintronics applications, J. Matr. SCi.: Matr in Elec., (2021) (DOI: 10.1007/s10854-021-07194-6).
  • S. Datta, S. Guha, S.K. panda, M. Kar, Structural and Magnetic Property Analysis of Bulk and Nanocrystalline Ni1.8Mn1.2Sn Heusler Alloy, J. Magn. Magn. Matr., 544 (2021) 168656. (DOI: 10.1016/j.jmmm.2021.168656).
  • L. kumar, M. Kar, R.K. Choubey, S. Mukherjee, Low field magnetic interactions in the transition metals doped CuS quantum dots, Chem. Phys. Lett., 780 (2) (2021) 138902. (DOI: 10.1016/j.cplett.2021.138902).
  • S. Kumari, M.K. Manglam, A. Shukla, L. Kumar, P. Seal, J.P. Boarh, M. Kar, Optimization of magnetic properties and hyperthermia study on soft magnetic nickel ferrite fiber, Physica B, 621(5) (2021) 413280. (DOI: 10.1016/j.physb.2021.413280).
  • P. Choudhury, P.K. Behra, S.K. Sahu. T. Bisoyi, R. R. Sahu, S.M. Prusty, A. Stitgen, J. Scanlon, M. Kar, L. Rout, Dehydrogenative oxidation of aryl methanol using oxygen bridged [Cu-O-Se] bimetallic catalyst, New J. Chem., 45(13) (2021) 13323 (Doi: 10.1039/D1NJ02508B).
  • S. Kumari, M. K. Manglam, L. K. Pradhan, L. Kumar, J. P. Borah, and M. Kar, Modification in crystal structure of copper ferrite fiber by annealing and its hyperthermia application. Applied Physics A, 127 (4), 1-13 (2021), (IF: 2.584, DOI:10.1007/s00339021-04429-5).
  • K. Tanbir, M. P. Ghosh, M. Kar, and S. Mukherjee, Tailoring the microstructural, magnetic and dielectric properties of vanadium ions substituted nickel ferrite nanocrystals. Journal of Materials Science: Materials in Electronics, 32(8), 1014010150 (2021) (IF: 2.478, DOI: 10.1007/s10854-021-05671-6).
  • L. Chouhan, S. K. Panda, S. Bhattacharjee, B. Das, A. Mondal, B. N. Parida, R. Brahma, M. K. Manglam, M. Kar, G. Bouzerar, and S. K. Srivastava, Room temperature d0 ferromagnetism, zero dielectric loss and ac-conductivity enhancement in p-type Ag-doped SnO2 compounds. Journal of Alloys and Compounds, 870, 159515 (2021) (IF: 5.316, DOI: 10.1016/j.jallom.2021.159515).
  • L. K. Pradhan, and M. Kar. "Relaxor Ferroelectric Oxides: Concept to Applications." (2021) (10.5772/intechopen.96185).
  • M.K. Manglam, S. Kumari, J. Mallick, M. Kar, Crystal structure and magnetic properties study on barium hexaferrite of different average crystallite size, Applied Physics A, 127 (2) 1-12, (2021) (IF: 2.584, DOI: 10.1007/s00339-020-04232-8).
  • M.K. Manglam, J. Mallick, S. Kumari, R. Pandey, M. Kar, Crystal structure and magnetic properties study on barium hexaferrite (BHF) and Cobalt zinc ferrite (CZF) in composites, Solid State Science, 113, 106529, (2021) (IF: 3.059, DOI: 10.1016/j.solidstatesciences.2020.106529).
  • L.K. Pradhan, S. Kumari, M.K. Manglam, R. Pandey, M. Kar, Microstructure –dependenmt electrical properties of Bi0.5Na0.5TiO3-BaTiO3-SrTiO3 ternary solid solution, Journal of Materials Science: Materials in Electronics, 32, 6607-6622 (2021), (IF:2.195, DOI: 10.1007/s10854-021-05376-w).
  • M.P. Ghosh, S. data, R. Sharma, K. Tanbir, M. Kar, S. Mukherjee, Copper dopped nickel ferrite nanoparticle: Jahn Teller distortion and its effect microstructural, magnetic and electric properties, Materials Science and Engineering B, 263, 1148864 (2021), (IF:4.051, DOI: 10.1016/j.mseb.2020.114864).
  • A. Jyoti, R.K. Singh, N. Kumar, A. K. Aman, M. Kar, Synthesis and properties of amorphous nanosilica from rice husk and its composite, Materials Science and Engineering B, 263, 114871 (2021), (IF:4.051, DOI: 10.1016/j.mseb2020.114871).
  • S. K. Paswan, S. Kumari, M. Kar, A. Singh, H. Pathak, J. P. Borah, L. Kumar, Journal of physics and chemistry of solids 151, 109928 (2021), (IF:3.94).

2020

  • D. Punetha, M. Kar and S. K. Pandey “A new type low-cost, flexible and wearable tertiary nanocomposite sensor for room temperature hydrogen gas sensing” Scientific Reports. 10, 2151 (2020), (IF:4.379, DOI:10.1038/s41598-020-58965-w).
  • S. Kumar, S. Supriya, L. K Pradhan, R. Pandey and M. Kar, “Grain size effect on magnetic and dielectric properties of barium hexaferrite (BHF)” Physica B, 579 411908 (2020), (IF:2.436, DOI:10.1016/j.physb.2019.411908).
  • S. K. Srivastava1, R. Brahma, S. Datta, S. Guha, Aakansha, S. S. Baro, B. Narzary, D. R. Basumatary, M. Kar “Effect of (Ni-Ag) co-doping on Crystal Structure and Magnetic Property of SnO2” Mater. Res. Express 6, 126107 (2019), (IF:1.62, DOI: 10.1088/2053-1591/ab58b1).
  • S. Kumar, L. K. Pradhan, M. K. Manglam and M. Kar, Magnetic interaction between BHF (BaFe12O19) and BTO (BaTiO3) in BTO–BHF nanocomposite, Journal Magnetism and Magnetic material (Accepted), (IF:2.993, DOI: 10.1016/j.jmmm.2019.166100).
  • S. Guha, R. Kumar, S. Kumar, L. K. Pradhan, R. Pandey, M. Kar Crystal structure and magnetic properties study on ferromagnet Fe2MnSi0.75Al0.25 Heusler alloy” Physica B 579, 411805 (2020), (IF:2.436, DOI: 10.1016/j.physb.2019.411805).
  • L. K. Pradhan, R. Pandey and M. Kar, Nonstoichiometric charge defect induced relaxor antiferroelectric ordering in La modified Bi0.5 (Na0.80K0.20)0.5TiO3 relaxor ferroelectric., J. Phys. Condensed matter, 32, 045404 (2020), (IF:2.333, DOI: 10.1088/1361-648x/ab4b2a).
  • S. Chauhan, M. Kar, J. Kumar, S. K. Jaiswal, Cerium induced Raman spectra of (Ba0.5Sr0.5)(Fe1xCex)O3-δ (x=0 - 1), Materials Chemistry and Physics 241, 122378 (2020), (IF: 4.094, DOI: 10.1016/j.matchemphys.2019.122378).
  • K.Tanbir · M. P. Ghosh, R. K. Singh, M. Kar and S. Mukherjee, “Effect of doping different rare earth ions on microstructural, optical, and magnetic properties of nickel–cobalt ferrite nanoparticles” Journal of Materials Science: Materials in Electronics 31, 435–443 (2020), (IF: 2.478, DOI: 10.1007/s10854-019-02546-9).

2019

  • S. Gupta, R. K. Choubey, L. K. Sharma, M. P. Ghosh, M. Kar and S. Mukherjee, Exploring the magnetic ground state of vanadium doped zinc sulphide, Semicond. Sci. Technol. 34,105006 (2019) (IF-2.352, DOI-10.1088/1361-6641/ab3a00/meta).
  • S. Guha, S. Kumar, S. Datta, M. K. Manglam and M. Kar, Metal to semimetal transition and magnetic critical behavior at room temperature in the full Heusler alloy Fe2MnSi. J. Phys. D: Appl. Phys. 52 , 505002 (2019), (IF-3.207,DOI-10.1088/1361-6463/ab4158).
  • L. K. Pradhan, R. Pandey, S. Kumar and M. Kar, Role of tricritical triple point type morphotropic phase boundary (multiple crystalline phases) on energy storage density in Bi0.5Na0.5TiO3 based solid solution, Mater. Res. Express 6,095521(2019), IF-1.620, DOI-10.1088/2053-1591/ab30e9).
  • L. K. Kumar, R. Pandey, S. Kumar, S. Kumari and M. Kar, “Evidence of compositional fluctuation induced relaxor anti-ferroelectric to antiferroelectric ordering in Bi0.5Na0.5TiO3– Bi0.5K0.5TiO3 based lead free ferroelectric” J Mater Sci: Mater Electron Mater. Res. Express 6, 095521 (2019), (IF-1.620).
  • S. Supriya, L. Kumar and M. Kar, “Optimization of dielectric properties of PVDF–CFO nanocomposites” Journal of Polymer Composites 40, 3, 1239-1250 (2019), (IF-3.171, DOI10.1002/pc.24840).
  • S. Supriya, S. Kumar and M. Kar, “Structural and Electrical Properties of CFO Nanoparticle- Filled PVA” Journal of electronic materials, 48, 6 (2019), (IF-1.774, DOI10.007/s11664-019-07113-w).
  • R. Pandey L. K. Pradhan, S. Kumar, S. Supriya, R. Singh and M. Kar “Correlation between Lattice strain and Physical (Magnetic, Dielectric and Magnetodielectric) properties of Perovskite-Spinel (Bi0.85La0.15FeO3)(1-x)- (NiFe2O4)(x) Composites" Journal of Applied Physics 125, 244105 (2019), (IF-2.546, DOI-10.1063/1.5063775).
  • S. P. Muduli, S Parida, S K Rout, S. Rajput and M. Kar, Effect of hot press temperature on β-phase, dielectric and ferroelectric properties of solvent casted Poly (vinyledene fluoride) films, Mater. Res. Express 6, 095306 (2019), (IF-1.620, DOI-10.1088/2053-1591/ab2d85).
  • S. Chauhan, L. K. Pradhan, M. Kar, R. K. Singh, J. Kumar and S. K. Jaiswal, Sol-gel synthesis, crystalline phase, optical absorption, and photo-luminescence behavior of cerium-doped (Ba0.5Sr0.5)FeO3−δ powders, Materials Research Express, 2019 (accepted), (IF-1.620, DOI10.1088/2053-1591/ab3a09).
  • S. Kumar, M. K. Manglam, S. Supriya, H. K. Satyapal, R. K Singh and M. Kar “Lattice strain mediated dielectric and magnetic properties in La doped barium hexaferrite” Journal of Magnetism and Magnetic Materials, 473, 312-319 (2019), (IF-2.993, DOI-10.1016/j.jmmm.2018.10.085).

2018

  • S. Kumar, S. Supriya, M. Kar, “Enhancement of dielectric constant in polymer-ceramic nanocomposite for flexible electronics and energy storage applications” Composites Science and Technology 157, 48-56 (2018), (IF-8.528, DOI -10.1016/j.compscitech.2018.01.025).
  • S. Supriya, S. Kumar, L. K. Pradhan, R. Pandey and M. Kar, “Multiple electrical phase transitions in nanocrystalline aluminium-substituted cobalt ferrite”, International Journal of Modern Physics B 32, 32, 1850358 (2018), (IF-1.219. doi-10.1142/S0217979218503587).
  • S. Kumar, S. Supriya and M. Kar “PVDF, Barium Hexaferrites, and rGO Nanocomposite for High Energy Density Capacitor” IEEE transactions on nanotechnology, 17, 6 (2018), (IF-2.570, doi-10.1109/tnano.2018.2853040).
  • S. Supriya, L. kumar and M. kar “Optimization of Dielectric Properties of PVDF–CFO Nanocomposites” Polymer composites: doi.org/10.1002/pc.24840 (2018), (IF-3.171, doi-10.1002/pc.24840).
  • L. K. Pradhan, R. Pandey, S. Kumar, S. Supriya and M. Kar, “Octahedral distortion due to oxygen vacancy reduction in La3+ modified BNT-BTO solid solutions near morphotropic phase boundary” J. Phys. D: Appl. Phys. 51, 375301 (2018), (IF3.207, doi-10.1088/1361-6463/aad50d).
  • R Pandey, L. K Pradhan and M. Kar, “Structural, magnetic, and electrical properties of (1–x)Bi0.85La0.15FeO3-(x)CoFe2O4 multiferroic composites” Journal of Physics and Chemistry of Solids 115, 42-48 (2018), (IF-3.995, doi-10.1016/j.jpcs.2017.12.001).
  • R Pandey, L. K Pradhan, P Kumar and M. Kar, “Effect of Ti substitution in place of Fe on crystal symmetries and magnetic properties of Bi0.850La0.150FeO3,” Journal of Physics and Chemistry of Solids 119, 107-113 (2018), (IF-1.938, doi-10.1016/j.jpcs.2018.03.042).
  • P. Kour, S. K. Pradhan, Pawan Kumar, S. K. Sinha, M. Kar, “Effect of Nd Doping on Dielectric and Impedance Properties of PZT Nanoceramics” Journal of Electronic Materials, NA (2018), (IF-1.938, doi-10.1007/s11664-018-6151-7).
  • L. K. Pradhan, R. Pandey, R. Kumar and M. Kar, “Lattice strain induced multiferroicity in PZT-CFO particulate composite” Journal of Applied Physics, 123, 074101 (2018), (IF-2.546, doi-10.1063/1.5008607).
  • P. Kour, S. K. Pradhan, Pawan Kumar, S. K. Sinha, M. Kar, “Effect of Sr doping on electrical properties of lead zirconate titanate nanoceramics” Ferroelectrics, 516, 104-112 (2017), (IF-0.621, doi-10.1080/00150193.2017.1370269).
  • L. Kumar, P. Kumar,V. Kuncser,S. Greculeasa, B.Sahoo and M. Kar, “Strain induced magnetism and superexchange interaction in Cr substituted nanocrystalline cobalt ferrite” Materials Chemistry and Physics, 211, 54-64 (2018), (IF-4.094, doi10.1016/j.matchemphys.2018.02.008).
  • S. Kumar, S. Supriya, L. K. Pradhan, R. Kumar and M. Kar, “Effect of lattice strain on structural and magnetic properties of Ca substituted barium hexaferrite” Journal of Magnetism and Magnetic Materials, 458, 30-38 (2018), (IF-2.993, doi10.1016/j.jmmm.2018.02.093).
  • R. Pandey, C Panda, Pawan Kumar and Manoranjan Kar, “Phase diagram of Sm and Mn co-doped bismuth ferrite based on crystal structure and magnetic properties” Journal of Sol-Gel Science and Technology, 85, 166–177 (2018), (IF-2.326, doi10.1007/s10971-017-4537-2).
  • R Pandey, L. K Pradhan, S Kumar and M. Kar, “Crystal structure, magnetic and dielectric properties of (1-x) BiFe0.80Ti0.20O3-(x)Co0.5Ni0.5Fe2O4 multiferroic composites.” Journal of alloy and compound, 2018 (Accepted), (IF-5.316, doi10.1016/j.jallcom.2018.05.198).
  • R Kumar, S. Guha, R K Sigh and M. Kar, Surface anisotropic induced magnetism in BTO-CFO nanocomposite. Journal of Magnetism and Magnetic Materials 465 93–99 (2018), (IF-2.993, doi-10.1016/j.jmmm.2018.05.061).

2017

  • S. Kumar, S. Supriya, L. K. Pradhan and M. Kar,  Effect of Microstructure on Electrical Properties of Li and Cr substituted Nickel Oxide, Journal of Materials Science Materials in Electronics, (2017) (Accepted).
  • S. Supriya, S. Kumar and M. Kar, Electrical  Properties and Dipole Relaxation  Behavior  of  Zinc Substituted Cobalt Ferrite, Journal of Electronic Materials (2017) (Accepted).
  • S. Supriya, S. Kumar and M. Kar, Impedance and DC resistivity studies on chromium substituted cobalt ferrite, Journal of Materials Science Materials in Electronics, 28, 10652–10673 (2017)
  • Rajnish Kumar, Rakesh Kr. Singh, Mukesh Kumar Zope and  M. Kar “Tuning of magnetic property by lattice strain in lead substituted cobalt ferrite” Materials Science and Engineering B 220, 73-81, (2017)
  • Lawrence Kumar, Pawan Kumar, Mukesh Kumar Zope and M. Kar “High-Temperature Magnetic Behaviour of 10 % Aluminium-Substituted Cobalt Ferrite” J Supercond Nov Magn, DOI 10.1007/s10948-016-3965-5, (2017)

2016

  • R. Kumar, M. Kar , “Correlation between lattice strain and magnetic behavior in non-magnetic Ca substituted nano-crystalline Cobalt Ferrite” Ceramics international 42, (2016) 6640-6647.
  • R. Kumar, M. Kar, “Lattice strain induced magnetism in substituted nanocrystalline cobalt ferrite” Journal of Magnetism and Magnetic Materials 416, (2016).335-341.
  • P. Kour, S. K. Pradhan, Pawan Kumar, S. K. Sinha, M. Kar, “Enhanced ferroelectric and piezoelectric properties in La-modified PZT ceramics” Appl. Phys. A, (2016).122:591.
  • Sweety  Supriya,   Sunil Kumar and M. Kar “Correlation between AC and DC transport    properties of  Mn  substituted cobalt ferrite” J. Appl. Phys. (2016).120, 215106
  • Sweety Supriya, Sunil Kumar and M. Kar “Enhancement of Impedance by Chromium Substitution and Correlation with DC Resistivity in Cobalt Ferrite” (2016) arXiv: 1610. 02489.
  • Chandrakanta Panda, Pawan Kumar, Rajnish Kumar and M. Kar “Enhanced Magnetic Properties near MPB in Ho and Mn Co-Substituted Nanocrystalline BiFeO3” Advanced Science Letters, (2016) 22, 766-772.

2015

  • P. Kumar, N. Shankhwar, A. Srinivasan and M. Kar, “Oxygen Octahedra Distortion induced Structural and Magnetic Phase Transitions in Bi1-xCaxFe1-xMnxO3 Ceramics” J. Appl. Phys. 117, (2015) 194103.
  • P. Kumar, C. Panda and M. Kar, “Effect of Rhombohedral to Orthorhombic Transition on Magnetic and Dielectric Properties of La and Ti co-substituted BiFeO3” Smart Material and Structures, 24(2015) 045028.
  • P. Kumarand M. Kar, Effect of Structural Phase Transition on Magnetic and Optical Properties of co-substituted Bismuth Ferrite, Materials Science in Semiconductor Processing 31(2015) 262.
  • P. Kour,P. Kumar, S. K. Sinha and M. Kar, “ Study of Dielectric and Impedance spectroscopy of La Substituted Nanocrystalline Pb(Zr0.52Ti0.48)O3 Ceramics” Journal of Materials Science: Materials in Electronics, 26 (2015) 1304.
  • V. Kumar, S. Kumari, P. Kumar, M. Kar, L. Kumar, “Structural Analysis by Rietveld Method and its Correlation with Optical Properties of Nanocrystalline Zinc Oxide” Advanced Materials Letters6 (2) (2015) 139.
  • S. Kumari, V. Kumar, P. Kumar, M. Kar and L. Kumar, “Structural and Magnetic Properties of Nanocrystalline Yttrium Substituted Cobalt Ferrite Synthesized by the Citrate Precursor Technique” Advance Powder Technology 26 (1) (2015) 213.

2014

  •  C. Panda,  P. Kumar,  A.K.Sinha,  A. Sagdeo and  M. Kar “Insights of Dielectric relaxations in Nd and Mn co-substituted BiFeO3” arXiv:1512.02757, (2015).
  • P. Kumar and M. Kar, Effect of Structural Transition on Magnetic and Dielectric Properties of La and Mn co-substituted BiFeO3 Ceramics, Material Chemistry and Physics148 (2014) 968.
  • P. Kumar and M. Kar, Tuning of Net Magnetic Moment in BiFeO3Multiferroics by Co-substitution of Nd and Mn, Physica B448 (2014) 90.
  • P. Kumarand M. Kar, Effect of Structural Transition on Magnetic and Optical Properties of Ca and Ti co-substituted BiFeO3 Ceramics.Journal of Alloys Compound584 (2014) 566.
  • L. Kumar, P. Kumar and M. Kar. Low Temperature and High Magnetic Field Dependence Magnetic Properties of Nanocrystalline Cobalt Ferrite, Journal of Superconductivity and Novel Magnetism 27 (2014) 1677.
  • L. Kumar, P. Kumar and M. Kar.Non-linear Behaviour of Coercivity to the Maximum Applied Field in La3+ substituted Nanocrystalline Cobalt Ferrite.Physica B 448 (2014) 38.
  • P. Kour,P. Kumar, S. K. Sinha and M. Kar, Electrical Properties of Calcium Modified PZT (52/48) Ceramics, Solid State Communications190 (2014) 33.
  • A. Bisen, A. Satapathy, S. Parida, E. Sinha, S.K. Rout, M. Kar. Structural, optical band gap, microwave   dielectric properties and dielectric resona antenna studies of Ba(1−x)La(2x/3)ZrO3 (0 < x < 0.1) ceramics, J. Alloys. Compd, 615 (2014) 1006.
  • A. K. Das, M. Kar, A. Srinivasan, Room temperature ferromagnetism in undoped ZnO nanofibers prepared by electrospinning, Physica B,  448 (2014) 112.

2013

  • L. Kumar, P. Kumar and M. Kar. Cation Distribution by Rietveld Technique and Magnetocrystalline Anisotropy of Zn Substituted Nanocrystalline Cobalt Ferrite, Journal of Alloys Compound 551 (2013) 72.
  • L. Kumar, P. Kumar and M. Kar.Effect of Non Magnetic Substitution on the Structural and Magnetic Properties of Spinel Cobalt Ferrite (CoFe2-xAlxO4) Ceramics, Journal of Materials Science: Materials in Electronics 24(8) (2013) 2706.
  • L. Kumar, P. Kumar and M. Kar.Comparative studies on Magnetocrystalline anisotropy constant of CoFe1.5M0.5O4, M=Al & Cr., Physics Express3 (2013) 21.
  • L. Kumar, P. Kumar and M. Kar. Influence of Mn substitution on crystal structure and magnetocrystalline anisotropy of nanocrystalline Co1-xMnxFe2-2xMn2xO4. Applied Nanoscience3 (2013) 75.
  • L. Kumar, P. Kumar, A. Narayan and M. Kar. Rietveld Analysis of XRD Patterns of Different Size Nanocrystalline Cobalt Ferrite, International Nano Letters, 3 (2013) 8.
  • S.  Mohanty, M.  Kar and S.  Ravi,. Ferromagnetism in Mechanically Milled pure  SnO2.  International Journal of Modern Physics B, 27, (2013), 1350025.
  • N. Sahu, M. Kar and S. Panigrahi.Conduction Mechanism by Using CBH Model in Fe+3 and Mn+3ion Modified Pb(Zr0.65− A Ti0.35)O3(A=Mn/Fe) Ceramics.Journal of Materials Volume 2013(2013).
  • N. Khobragade, E.Sinha, S.K. Rout, M. Kar, Structural, optical and microwave dielectric properties of Sr1−xCaxWO4 ceramics prepared by the solid state reaction route, Ceramics International39 (2013) 9627–9635.
  • M.Ganguly, S. K. Rout, C. W.Ahn, I. W. Kim, M. 0Kar,  Structural, electrical and optical  properties of Ba (Ti1− xYb4x/3)O3 ceramics,Ceramics International,  39(8), (2013), 9511–9524.
  • B. Parija, T. Badapanda, P.K. Sahoo, M. Kar, S. Panigrahi, P. Kumar, Structural and electromechanical study of Bi0.5Na0.5TiO3-BaTiO3 solid-solutions, Processing and Application of Ceramics, 7(2013),2.

Up to 2012

  • L. Kumar and M. Kar Effect of Ho3+ Substitution on the Cation distribution, Crystal Structure and Magneto-crystalline Anisotropy of Nanocrystalline Cobalt Ferrite, J. Experimental Nanoscience, (2012), 1–13
  • L. Kumar and M. Kar, Effect of La3+ substitution on the structural and magnetocrystalline anisotropy of Nanocrystalline cobalt ferrite (CoFe2-xLaxO4),Ceramic International, Vol. 38, No. (2012), 4771-4782.
  • L. Kumar and M. Kar, Effect of Annealing Temperature and Preparation Condition on Magnetic Anisotropy in Nanocrystalline Cobalt Ferrite, IEEE Transactions on Magnetics 47 (10),(2011), 1-4.
  • N. Sahua, S. Panigrahia and M. Kar “Structural investigation and dielectric studies on Mn substituted Pb(Zr0.65Ti0.35)O3 perovskite ceramics”  Ceramics International 38, 1549-1556 (2012).
  • L. Kumar and M. Kar, Influence of Al3+ ion concentration on the crystal structure and magnetic anisotropy of nanocrystalline spinel cobalt ferrite, Journal of Magnetism and Magnetic Materials, 323, (2011), 2042–2048.
  • N. Sahu, S. Panigrahi and M.Kar,  Structural investigation and dielectric studies on Mn  substituted Pb(Zr0.65Ti0.35)O3perovskite ceramics, Ceramics International, 38(2), pp. (2011), 1549-1556.
  • N. Sahu, S. Panigrahi and M.Kar,  Structural study of Zr doped PbTiO3 materials by employing  Rietveld method, Advanced Powder Technology, 22 (6), (2011), 689-694.
  • N.  Sahu, M. Kar and S. Panigrahi, Rietveld Refinement, Microstructure and Electrical Properties of PbTiO3 Ceramic Materials, Archives of Physics Research, 1 (1), (2010), 75-87.
  • K. K. Singh, M. Kar and H. L. Das, Effect of substrate temperature on photoconductivity in CdS thin films,Indian Journal of Pure and applied physics, 48, pp. (2010), 110-114.
  • A. Murugadoss, M. Kar, R. Pasricha and A. Chattopadhyay, Silver Fused Conducting Fiber Formation of Au@Ag Core-shell Nanoparticles Mediated by Ascorbic Acid., Plasmonics,,Volume 4, Issue 2, (2009), 161-170.
  • S. K.  Srivastava, M. Kar, S. Ravi, P. K. Mishra, P. D. Babu, Magnetic properties of electron-doped Y1−xCexMnO3 compounds, Journal of Magnetism and Magnetic Materials, Volume 320, issue 19 (2008), 2382-2386.
  • S. K. Srivastava, M. Kar and S. Ravi, Ferromagnetic Insulating and Spin Glass behaviour in Cr Substituted La0.85Ag0.15MnO3Compounds., J. Phys.: Condens. Matter 20,(2008),235201
  • S. K. Srivastava, M.Kar and S. Ravi, Effect of Al Substitution on La0.85Ag0.15MnO3 Double Exchange Ferromagnetic Compound. Materials Science Eng. B, 147 (2008), 84-89.
  • A. Murugadoss, M. Kar and A. Chattopadhyay, Acetanilide Mediated Reversible Assembly and Disassembly of Au Nanoparticles and Their Catalytic Activities.Journal of Colloid and Interface Science - J Colloid Interface Sci, vol. 324, no. 1,(2008), 230-235.
  • S. Ravi, M. Kar, S. M. Borah and P.S.R. Krishna,Neutron Powder Diffraction Studies in CaMn1-xCuxO3 (x = 0, 0.20). Crystal Research and Technology, Volume 43, Issue 12,(2008),1318–1322
  • S. K. Srivastava, M. Kar and S. Ravi,Preparation and Characterization of Hexagonal Y1-xCexMnO3. Ind. Journal of Phys, 82, (2008), 195-200.
  • S. K. Srivastava, M. Kar and S. Ravi, Effect of Co Doping on the Magnetic Properties of La0.85Ag0.15 (Mn1-yCoy)O3.Journal of Magnetism and Magnetic Materials, Volume 320, issue 14 (2008), p. e107-e110.
  • S. K, Bharadwaj, S. Hussain, M. Kar and K. M. Chaudhuri, Acid Phosphate impregnated Titania Catalyzed Nitration of Aromatic Compounds with Nitric Acid., Applied Catalysis A: Volume 343, Issues 1–2, (2008), Pages 62–67.
  • S. K. Bharadwaj, S. Hussain, M. Kar, M. K. Chaudhuri, Al (H2PO4)3: An efficient catalyst for nitration of organic compounds with nitric acid. Catalysis Communicationsvol. 9, no. 5, pp. 919-923, 2008.
  • S. K. Srivastava, M. Kar and S. Ravi,Electrical Transport and Magnetic Properties on La0.85Ag0.15(Mn1-yAly)O3Compound., Indian Journal of Physics 82 (6) (2008)
  • S. Srivastava, M. Kar, and S. Ravi, Linear and Non Linear ac Susceptibility studies in La (Mn1-xCux) O3. J. Magn. Magn. Mat. 307, 318-324 (2006).
  • M. Kar, S. M. Borah and S. Ravi Study of Electrical Transport and Magnetic Properties in CaMn1-xCuxO3., Mat. Scien. & Eng. B, 129, 54-58 (2006).
  • M. Kar, A. Perumal and S. Ravi, Critical behavior studies in La1-xAgxMnO3 Double-Exchange Ferro magnet. Physica Status Solid B, 243, 1908-1913 (2006).
  • M. Kar and S. Ravi, Electrical Resistivity and ac Susceptibility Studies in Sr1-xLaxMnO3. Mod. Phys. Lett. B, 20, 1517-1528, (2006).
  • M. Kar and S. Ravi, Study of electrical transport and ac susceptibility in LaMn1-xCuxO3Mod. Phys. Lett. B, 19, 317-330, (2005).
  • M. Kar and S. Ravi Magneto-Resistivity, Ferromagnetism and Charge Ordering in Ba1-xLaxMnO3., Mat. Scien. & Eng. B, 123, 95-101 (2005).
  • M. Kar and S. Ravi, Study of Structural, Electrical Transport and Magnetic Properties in La1-xAgxMnO3Compounds. Modern Physics Letters B, 18 (221-231) 2004.
  • M. Kar and S. Ravi, Electrical resistivity and ac susceptibility studies in La1-xAgxMnO3. Mat. Scien. & Eng. B, 110 (46-51) 2004.
  • S. Ravi and M.Kar, Study of magneto-resistivity in La1-xAgxMnO3 compounds, Physica B, 348 (169-176) 2004.
  • M. Kar and S. Ravi Study of structural, magnetic, and electrical transport properties in La1-xCuxMnO3., Mat. Scien. & Eng. B, 107 (332-336) 2004.
  • M. Kar and S. Ravi, PRAMANA Metal-insulator transition in electron-doped Ba1-xLaxMnO3 compounds. Pramana J. of Physics, 58 (1009-1012) 2002.

Peer Reviewed Conference Publications:

  • S. Supriya, S. Kumar and M. Kar, CFO-Graphene Composite for High Performance Electrode Material,  Elsevier Materials Today: Conf. Proc. 4, 5651-5656 (2017).
  • S. Kumar, S. Supriya and M. Kar, The effect of sintering on the electrical properties of BaFe12O19, Elsevier Materials Today: Conf. Proc. 4, 5517-5524 (2017).
  • S. Kumar, S. Supriya and M. Kar, Electrical Properties of Barium Hexaferrites and Reduced Graphene Oxide Nanocomposite for Microwave Devices, IEEE Xplore Conf. Proc. (2016) (Accepted).
  • S. K. Pradhan, A. Kumar, N. Sinha, P. Kour, r. Pandey, P. Kumar and  M. Kar “Enhanced dielectric constant and impedance of  PVDF due to incorporation of PZT in its matrix” Digest Journal of Nanomaterials and Biostructures,  Vol. 12, No. 1, January March 2017, p. 141-149.
  • S. Supriya , S.Kumar and M. Kar, CFO-Graphene Composite for High Performance Electrode Material, Elsevier Materials Today: Conf. Proc. (2016) (Accepted).
  • S. Kumar, S. Supriya and M. Kar, The effect of sintering on the electrical properties of BaFe12O19, Elsevier Materials Today: Conf. Proc. (2016) (Accepted)
  • S. Supriya, S. Kumar and M. Kar, Enhanced Dielectric of PVDFCoFe1.5Cr0.5O4 for Capacitor Application. AIP Conf. Proc. 2016 (Accepted).
  • S. Supriya, S. Kumar and M. Kar, Grain Size Effect on Activation Energy in Spinel CoFe2O4 Ceramic, AIP Conf. Proc. 1731, 110025 (2016).
  • S. Supriya, S. Kumar and M. Kar, Impedance spectroscopy studies in cobalt ferrite reduced graphene oxide nanocomposite, AIP Conf. Proc. 1728, 020566 (2016).
  • S. Kumar, S. Supriya, P. Kumar and M. Kar, Dielectric investigations on co-substituted bismuth ferrite (Bi1-xLaxFe1-xMnxO3), AIP Conf. Proc. 1728, 020578 (2016).
  • S. Kumar, S. Supriya and M. Kar, Electrical Properties of Barium Hexaferrites and Reduced Graphene Oxide Nanocomposite for Microwave Devices, IEEE Xplore Conf. Proc. (2016) (Accepted).
  • L. K. Pradhan, R. Pandey, and M. Kar. Existence of multi crystallographic phase in BNT-BTO solid solution near morphotropic phase boundary. AIP Conf. Proc. (2016) (Accepted)
  • R. Pandey, C. Panda, P. Kumar, L.  K.  Pradhan and M. Kar. Role of Grain and Grain Boundary on the Electrical and Thermal Conductivity of Bi0.9Y0.1Fe0.9Mn0.1O3 Ceramics AIP Conf. Proc. (2016) (Accepted)
  • P. Kumar and M. Kar, Double Crystal Symmetries in Morphotropic Phase Boundary of Substituted BiFeO3 Ceramics, AIP Conference Proceedings 1665, 050178 (2015).
  •  P. Kour,  S. K. Pradhan,  P. Kumar,  S. K. Sinha and  M.Kar, “Enhanced ferroeletric and piezoelectric properties of Nd3+ doped PZT nanoceramics” AIP Conf. Proc. 1728, (2016) 020490 .
  • P. Kour, P. Kumar, M. Kar and S. K. Sinha, Enhance of Ferroelectric Properties by Modifying Pb2+ side by Mg 2+in PZT (52/48) Ceramics. AIP Conf. Proc. 1512 (2013) 1276.
  • C. Panda, P. Kumar and M. Kar,Structural Analysis and Electrical Properties of Bi1-xLaxFe1-xTixO3Ceramics. AIP Conf. Proc. 1512 (2013) 1286.
  • S. M.  Borah, M. Kar and S.  Ravi, Electrical Resistivity studies on   Ca0.95A0.05MnO3 Compounds (A = V, Nb, and Sn), Proceeding of DAE Solid State Physics Symposium, 46 (2004) 193.
  • S. K. Srivastava, M. Kar and S. Ravi,Spin glass behavior in in La(Mn1-xCux)O3 compounds.,Proceeding, DAE solid state symposium, 50 (2005) 825.
  • S. K. Srivastava, M. Kar and S. Ravi,Effect of Co Substitution on Crystal Structure and Magnetic Property of La0.85Ag0.15Mn1-yCoyO3 (y = 0 to 1) Compounds., Proceeding, DAE solid state symposium, 51 (2006) 851.
  • S. K. Srivastava, M. Kar and S. Ravi,Reentrant Spin Glass Behavior in (La0.85Ag0.15)(Mn0.85M0.15)O3 (M = Co, Cr), Proceeding, DAE solid state symposium, 52 (2007) 1017.
  • M. Kar, Electrical  Resistivity  and  AC  susceptibility  Studies  in  PerovskiteManganites. Proceeding of DAE Solid State Physics Symposium, 49 (2004)812.
  • M. Kar and S. Ravi,Metal-Insulator Transitions in La1-xCuxMnO3 Compounds, Proceeding of DAE Solid State Physics Symposium, 46 (2003) 891.
  • M. Kar and S. Ravi, Electrical Resistivity and Crystal Structure Studies on Ca(Mn1-xCux)O3 Compounds. Proceeding of DAE Solid State Physics, 44 (2001)473.
  • S. Ravi, M. Kar and G. Rangarajan,Study of M-H Loops on YNi2B2C Superconductors Using Critical State Model, Proceeding of DAE Solid State Physics Symposium, 43(2000) 428.
Conference Presentations :
  • R.Pandey, P.Kumar, L.K Pradhan, M.K. Zope and M. Kar. Effect of TI doping on crystal symmetries and magnetic properties of Bi0.85La0.15Fe2O3 ceramics. ICMAGMA (2017)
  • R. Pandey, L. K. Pradhan and M.Kar, Structural and dielectric investigation of Bi1-xDyFe1-xMnxO3.ICMST-2016, Kerala, June. 5-8 (2016)
  • R. Pandey, C. Panda, P. Kumar, L. K. Pradhan and M. Kar. Effect of structural transition on Magnetic properties of Y and Mn Co-doped BFO ceramic. ICMDA-2016(NIT Patna)
  • R. Pandey, L. K. Pradhan and M. Kar. Structural and Dielectric Investigation of Bi1-xDyxFe1-xMnxO3. ICMST-2016(Dept. of Physics, ST. Thomas College, Palai, Kerala)
  • R.  Pandey, L.K Pradhan and M. Kar. Study on oxide-ion conductivity in Ca modified Bismuth Ferrite (Bi0.95Ca0.05FeO3) multiferroic compound for solid oxide fuel cell application. ACSSI-2016 (IIT Patna).
  • L. K. Pradhan, R. Pandey, R. Kumar, P. Kumar and M. Kar, Composition driven magnetoelectric coupling in CFO-PZT nanocomposite, ICNAN-2016 (VIT University)
  • S. Kumar, S. Supriya and M. Kar, Dielectric Investigations on Li and Cr Substituted Nickel Oxide, 4th ICANN 2015, IIT Guwahati, Dec. 8-11, (2015).
  • L.K. Pradhan, R. Pandey, R. Kumar, P. Kumar and M. Kar, Structural and electrical properties of CFO and PZT multiferroic nanocomposite, 4th ICANN 2015, IIT Guwahati, Dec. 8-11, (2015).
  • R. Kumar, R. Pandey and M. Kar, Study of strain mediated magnetism on non-magnetic Sr substituted cobalt ferrite by employing the Arrott plot, ICMAGMA, Vellore University, Dec 2- Dec 4, (2015).
  • R. Kumar, A. M. Goswami and M. Kar, Increase of Dielectric Constant in PVDF by Incorporating La1.8Sr0.2NiO4 into its Matrix, International Conference on Condense matter and Applied physics, Bikaner, Oct 30-31, (2015).
  • S. Kumar, S. Supriya, P. kumar and M. Kar Dielectric Investigations on co-substituted Bismuth Ferrite (Bi1-xLaxFe1-xMnxO3) ICC 2015, Bikaner, Rajasthan, Oct. 30-31, (2015).
  • S. Supriya, S. Kumar and M. Kar, Impedance Spectroscopy Studies in Cobalt Ferrite-Reduced Graphene Oxide Nanocomposite, ICC 2015, Bikaner, Rajasthan, 30-31 October, (2015).
  • R.  Kumar,   R.  Pandey   and   M.  Kar,  Enhanced  Magnetocrystalline  anisotropy  of Co0.99Ca0.01Fe2O4, Indo-Japan Workshop on Magnetism at Nanoscale,  NISER Bhubaneswar Jan 9-Jan 12, (2015).
  • P. Kumar, A. K. Sinha, A. Sagdeo, M. N. Singh and M. Kar, Comparative study on oxygen octahedral tilting induced structural transition in co-substituted BiFeO3 ceramics, 5th conference on Neutron Scattering (CNS-2015); BARC Mumbai (Maharashtra), February 2-4, 2015.
  • P. Kumar, A. K. Sinha, A. Sagdeo, M. N. Singh and M. Kar, Comparative study on oxygen octahedral tilting induced structural transition in co-substituted BiFeO3 ceramics, 5th conference on Neutron Scattering (CNS-2015); BARC Mumbai (Maharashtra), February 2-4, 2015.
  • R. Kumar and M. Kar, Magnetic studies of nanocrystalline cobalt ferrite by Employing the Arrot  plot,  International  Conference  on  Condense  matter  and  Applied  physics,  Bikaner,Oct30-31, (2015).
  • S. Supriya, S. Kumar P. Kumar and M. Kar, Interplay between Cation Distribution and Dielectric relaxations in Cr-substituted Nanocrystalline Cobalt ferrite, NANOCON 2014, 3rd international  conference  on  Nanotechnology,  Bharti  Vidyapith  University,  Pune  30-31October, (2014).
  • S. Kumar, S. Supriya and M. Kar,  Low Resistivity Measurement Techniques, Bihar ScienceConference, Patna University, Patna, 23-25 Dec. (2014).
  • S. Supriya, S. Kumar and M. Kar,  Impedance Spectroscopy for Materials characterization, Bihar Science Conference, Patna University, Patna, 23-25 Dec. (2014).
  • R.  Kumar   and M.  Kar,   A  topical  review  on  magnetoelectric  composite,  Bihar  Science Conference, Magadh Mahila College, Patna (2014)
  • R. Kumar, L. K. Pradhan and M. Kar, Photoluminiscence studies of Cobalt ferrite, IOQO, IIT Patna (2014).
  • P. Kumar, R. Kumar and M. Kar, Enhanced Magnetic Properties near MPB in Ho and Mn co-substituted Nanocrystalline BiFeO3, NANOCON 2014, Pune (Maharastra) October 14-15, 2014.
  • L. Kumar, S. Kumari, V. Kumar, P. Kumar and M. Kar, Structural and Magnetic Properties of Rare Earth Substituted Nanocrystalline Cobalt Ferrite. International Conference on Electron Microscopy & XXXV Annual Meeting of Electron Microscope Society of India (EMSI-2014), University of Delhi, India, July 9-11, 2014.
  • P. Kumar and M. Kar, Raman Spectroscopy and Direct Band Gap Studies on co-substituted Bismuth Ferrite, IOQO-2014, IIT Patna, Nov 7-8, 2014.
  • M. Kar and P. Kumar, Multiple Crystal Symmetries in NanocrystallineBi1-xNdxFe1-xMnxO3Multiferroics. ETCMP-2014. T. M. Bhagalpur University, Jan 17-18, 2014.
  • S. Greculeasa, V. Kuncser, G. Schinteie, L. Kumar, P. Kumar, B. Sahoo and M. Kar. Magnetic and Mössbauer spectroscopy study of Al and Mn substituted nanocrystalline Ni ferrites. Electroceramics XIV Conference, Romania, June 16-20, 2014.
  • P. Kour, P. Kumar, M. Kar and S. K. Sinha, Effect of Neodynium Doping on the Dielectric and Impendance of PZT Nanoceramics, IUMRS-ICA, 2013, IISc Bangalore, Dec 16-20, 2013
  • Pawan Kumar and M. Kar, Effect of Structural transition on Magnetic Properties of La and Mn co-substituted Bismuth Ferrite.,SPPS-2013, ISM Dhanbad, Nov 18-20, 2013.
  • P. Kumar, Rajnish Kumar and M. Kar, Enhanced Magnetic and Dielectric Properties of Ca2+ and Ti4+ co-doped Bismuth Ferrite..EEMR-2013. CSIR - Institute of Minerals and materials Technology, Bhubaneswar. Aug 12-13.
  • Lawrence Kumar, P. Kumar and M. Kar, Cations Distribution studies in Spinel Ferrites from XRD pattern by Rietveld Method.ICWNCN-2012. Delhi University. March 13-16, 2012.
  • Lawrence Kumar, P. Kumar and M. Kar, Influence of non-magnetic Substitution on the Cation Distribution, Crystal Structure and Magnetocrystalline Anisotropy of Nanocrystalline Spinel Cobalt Ferrite.ICNANO-2011, Delhi University. Dec 18-21 2011.
  • Lawrence Kumar, Pawan Kumar and M. Kar, Non-linear Behaviour of Coercivity to the Maximum Applied Magnetic Field in La Substituted Nanocrystalline Cobalt Ferrite, MagMA-2013, IIT Guwahati, Dec 05-07, 2013.
  • P. Kumarand M. Kar, Weak Ferromagnetism in Nd and Mncodoped BiFeO3Multiferroic, MagMA-2013. IIT Guwahati, Dec 05-07, 2013.
  • P. Kumar and M. Kar, Ferromagnetism in Bismuth Ferrite by co-substitution on Bi and Fe sites,,CMDAYS 2013, 28-31 Aug-2013, NIT Rourkela.
  • P. Kour, P. kumar, S. K. Sinha & M. Kar, Dielectric and Impedance Properties of Sr2+ ion Modified PZT Ceramics, ,CMDAYS 2013, 28-31 Aug-2013, NIT Rourkela.
  • P. Kumar and M. Kar, Reduction of Leakage Current in Bismuth Ferrite by Creating Chemical Pressure in Lattice International Conference on frontiers in Energy, environment, health and Materials Science (EEMR-2013), 12-13 Aug-2013, IMMT, Bhubaneswar.
  • P. Kour, P. kumar, S. K. Sinha & M. Kar, Effect of Crystallite size on Dielectric and Impedance Property of PZT (52/48) Ceramics, International Conference on frontiers in Energy, environment, health and Materials Science (EEMR-2013), 12-13 Aug-2013, IMMT, Bhubaneswar.
  • L. Kumar, P. Kumar and M. Kar, Structural and Magnetic Properties in Nanocrystalline CoFe2O4., National Conference on. Recent Advances in Science for Technology. (RAST-2012). Feb 27-28, 2012.
  • C. Panda and M. Kar,Rietveld Analysis and Electrical Properties of Bi1-xSmxFe1-xMnxO3 Ceramics. RTCST- 2012, IIT Patna, March 3-4, 2012.
  • P. Kaur, S. K. Sinha and M. Kar, Microstructure and ferroelectric Studies on Nanocrystalline La3+ substituted PZT. RTCST- 2012, IIT Patna, March 3-4, 2012.
  • L. Kumar, P. Kumar and M. Kar, Effect of Y3+Subsitution on the Structural and Magnetocrystalline Anisotropy of Nanocrystalline Cobalt Ferrite. RTCST- 2012, IIT Patna, March 3-4, 2012.
  • L. Kumar, P. Kumar and M. Kar,Cations Distribution studies in Spinel Ferrites from XRD pattern by Rietveld Method.ICWNCN-2012. Delhi University. March 13-16, 2012.
  • L. Kumar, P. Kumar and M. Kar, Crystal Structure and Magnetocrystalline Anisotropy Constant Studies on CoFe1.5M0.5O4, M = Al & Cr.CMDAYS-2012. BIT Meshra, Ranchi. Aug 29-31, 2012.
  • C. Panda, P. Kumar and M. Kar,Rietveld Analysis and Electrical Properties of Samarium and Manganese Doped BiFeO3 Ceramics.CMDAYS-2012. BIT Meshra, Ranchi. Aug 29-31, 2012.
  • S. Kumar, P. Kumar, A. R. Yadav, and M. Kar, Structural Characterization and Cation Distribution on Al Substituted Nickel Ferrite. CMDAYS-2012. BIT Meshra, Ranchi. Aug 29-31, 2012.
  • Enhancement of Dielectric Constant by Calcium Substitution in Nanocrystalline PZT Ceramics. P. Kour, S. K. Sinha, P. Kumar and M. Kar. CMDAYS-2012. BIT Meshra, Ranchi. Aug 29-31, 2012.
  • L. Kumar and M. Kar, Influence of La3+ Ion Concentration on the Magnetic Anisotropy of Nanocrystalline Spinel Cobalt Ferrite, NANOMAT-2011, Indian School of Mines Dhanbad, India, February 10-11, 2011.
  • L. Kumar and M. Kar,Effect of Annealing Temperature on Magnetic Anisotropy in Nanocrystalline Cobalt Ferrite, INTERMAG-2011, Taipei, Taiwan, April 25-29, 2011
  • L. Kumar and M. Kar, Structural and Magnetic Properties of Nanocrystalline La-substituted Cobalt Ferrite. International Conference on Materials for Advanced Technologies, Suntec, Singapore, 26 June-1 July, 2011, Page No. 147.
  • N. Sahu, M. Kar, and S.Panigrahi, Rietveld structural study, microstructure, dielectric and impedance properties of Fe3+ ion modified on Pb(Zr0.65Ti0.35)O3Perovskite Ceramics. National seminar on physics and technology of Novel materials (PTNM-2010), Sambalpur University.
  • S. Panigrahi, N. Sahu and M. Kar, Enhancement of Conductivity in Fe3+ and Mn3+ modified Pb(Zr0.65-xFexTi0.35)O3 ceramics, ICE-2011, Sydney, Australia.
  • N. Sahu, M. Kar & S.Panigrahi, Rietveld analysis of a single phase PbTiO3. National Conference on Mechanism Science and Technology: from Theory to Application, November 13-14, 2008 National Institute of Technology, Hamirpur (H.P.) India -177005
  • N. Sahu, M. Kar & S.Panigrahi, Structural Transition and Rietveld Refinement on a Single Phase Nanocrystalline Pb0.5Zr0.5TiO3 Ceramics. CONDENSED MATTER DAYS-2009(Symposium on condensed Matter Physics), 26-28th August 2009, Jadavpur University, Kolkata.
  • N.  Sahu,  S.  Panigrahi  and  M.  Kar, Structural change  of  Zr  Doped  PbTiO3  Ceramics.International conference of electro ceramics 2009, Dec13-17, 2009 Delhi University.
  • S. K. Srivastava, M. Kar and S. Ravi, Effect of Co doping on the crystal structure, electrical transport and magnetic properties of (La0.85Ag0.15)(Mn1-yCoy)O3. Presented in Latin-American Workshop 2007, Aug. 2007, Rio de Janeiro, Brazil
  • S. K. Srivastava, M. Kar and S. Ravi,Study of Electrical Transport, Magnetic Properties of La0.85Ag0.15Mn1-xTxO3 (T=Co,Al). INSA-HAS Workshop 2006, Dec. 2006 Uni. Of Hyderabad, India
  • S. K. Srivastava, M. Kar and S. Ravi, Crystal Structure Studies on La0.85Ag0.15Mn1-yAlyO3Compounds. Crystallography Conference 2007, March 2007, Chennai, India
  •  M. Kar and K. Acharyya, Crystallite Size Determination by Using XRD. ACTON 2005, Page 37, IIT Roorkee.
  • A. K. Saha, M. Kar and S. Ravi, Characterization of La0.85Ag0.15 (Mn1-xCox)O3 (x = 0 to 0.15) Compounds. NCMS-2005, (2005)CU Hyderabad.
  • M. Kar and S. Ravi, Study of Crystal Structure in La1-xAgxMnO3 Compounds. X-ray Tech. in Res. and Industry (XTRI-2003), DMRL, Hyderabad, Dec. 3-5, 2003.
  • S. Ravi and M. Kar, Colossal Magneto-Resistivity in La1-xAgxMnO3 Compounds. Recent Developments & Challenges in Physics (RDCP-2002), School of Physics, University of Hyderabad.
Invited Talks :  
Special Training: :
  • International Workshop on SciLab, a scientific package for computation. Held at IOPB, BBSR. Organized by Indo-French center.
  • International Workshop on X-ray diffraction. Held at IACS, Kolkata.
  • Workshop on neutron diffraction. Held at Bhabnagar University, Bhabnagar, Gujarat and BARC, Mumbai.
  • Awareness Workshop on “The Facilities of Inter University Consortium for DAE Facilities at Indore”. Held at Indian Institute of Technology Guwahati, Guwahati.
  • Two Months Spoken English Course, Sabari College, Chennai,
  • Rastravasa Hindi Kobida Pass, 1990

Organizing committee member::

  • RESPECT KVs, 7th to 9th April 2017, IIT Patna, Convener of the Workshop.
  • RESPECT   KVs, 21th to 23rd October 2016, IIT Patna, Convener of the Workshop.
  • IOQO 2014, 7- 8th Nov 2014, IIT Patna. Local Organizing Committee Member.
  • Orientation Course for Physics Teachers”, 01-07-2013, Organizing Secretary, IIT Patna
  • National symposium on Recent Trends in Chemical Science and Technology, RTCST 2012, IIT Patna.
  • Patent and IPR Workshop, 3rd March-2013, IIT Patna. Organizing Committee Member. 1st Convocation IIT Patna, 2012. Organizing committee member.
  • Instructional Workshop on Geometric Group Theory, December 2-15, 2002, Organizing committee member.
  • International Conference on Geometric Group Theory, December 15-21, 2002. Organizing committee member.
  • Work Shop: Awareness of DAE facilities, Held at IIT Guwahati, February-2004.
  • Instructional Workshop on Algebraic Graph Theory, December 9-18, 2004, Organizing committee member.
  • QIP short term course on “Cryogenic Engineering and Cryogenic Materials”, Dept of phys.
  • IIT Guwahati, Jun 20-24, 2005, Organizing committee member and invited speaker.
  • International Workshop on Treatment of Thermal Radiation in Heat Transfer Problems.
  • International Symposium on Recent Trends in Heat and Mass Transfer, IIT Guwahati, 2-3 January 2006, Organizing committee member.
  • 18th National and 7th ISHMT/ASME Heat and Mass Transfer Conference, IIT Guwahati, 4-6 January 2006,Organizing Committee Member
  • 2nd International Congress on Computational Mechanics and Simulation (ICCMS-06), 8-10 December 2006,IIT Guwahati, Organizing committee member
  • QIP short term course on Advanced experimental techniques, Dept. of Physics, IIT Guwahati,Feb., 6 - 11, 2006, Organizing committee member and invited speaker.
  • Inter IIT Sports meet Organizing Committee Member.
  • DST-PAC Meeting 2008, IIT Guwahati, 24-25 March-2008. Organizing Committee Member.

Seminars, Workshops, Summer schools, Conferences::

  • International Workshop on Scilab, a scientific package for computation. Held at IOPB, BBSR. Organised by Indo-French center. 2001
  • International Workshop on X-ray diffraction.IACS, Kolkata. 2002
  • Workshop on neutron diffraction. Bhabnagar University, Bhabnagar, Gujarat. 2002
  • Awareness Workshop on “The Facilities of Inter University Consortium forDAE Facilities at Indore”. Held at Indian Institute of Technology Guwahati. 2007

Accademics::

  • July 1999 to July 2004: Ph. D, Dept. of Physics, Indian Institute of Technology Guwahati, India
  • July 1996 to July 1998: M. Sc. Physics, F. M. College, Balasore.
  • July 1993 to July 1996: B. Sc. Physics, U. N. College, Soro, Balasore
  • June 1990-May1992: +2 Science, Bhadrakcollege, Bhadrak
  • June 1987-May 1990: High School, Jagannathpur High school
  • June 1985-May 1987: M. E. School, Jagannathpur M.E. school
  • June 1980-May 1985: U.P. School, Jagannathpur U. P. school

 

 

 

 

 

 

 

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