Dr. Soumya Jyoti Ray
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Dr. Soumya Jyoti Ray
Assistant Professor
Professor In Charge - Registration
Professor In Charge - Faculty Meeting
PhD Coordinator
PIC Registration
Ph.D, University of St. Andrews, UK
M.Sc,Indian Institute of Technology Kanpur
+91(0) 61 302 8616 (office), +91(0) 61 302 8072 (Lab)
ray[*AT]iitp.ac.in
Personal Webpage : https://sites.google.com/view/sjray/
Research Areas/Areas of Interest : Condensed Matter Physics: Experiment and Theory
  • 2D Materials (graphene et al.)
  • Nanoelectronics
  • Spintronics
  • Superconductivity
  • Magnetism
  • Resistive Switching
  • Machine Learning
  • Topological Insulators
  • Quantum Metrology
Sponsored Projects :
  • DST - Core Research Grant
  • DST - Early Career Research Award
  • DST – INSPIRE Research Grant
  • UGC-DAE Collaborative Research Scheme
Other Interests :
  • Travelling
  • Sports
  • Writing
Courses taught at IITP :
  • PH101(T) : Physics – I (B. Tech)
  • PH429 : Electronics (MSc)
  • PH430 : Electronics Laboratory (MSc)
  • PH424 : Statistical Mechanics (MSc)
  • PH440 : General Physics Laboratory (MSc)
  • PH512 : Atomic and Molecular Physics (MSc)
  • PH527 : Measurement Techniques (MSc)
  • PH703 : Quantum Mechanics and Statistical Mechanics (PhD)
  • NT514 : Seminar (M. Tech)
Research Students :
  • Karuna Kumari (PhD)
  • Shantanu Majumder (PhD)
  • Shivani Rani (PhD)
  • Puja Kumari (PhD)
  • Subhasmita Kar (PhD)
  • Akhil Nair (M. Tech)
  • Saurabh Sharma (M. Tech)
Professional Experience :
  • March, 2016 – present : Assistant Professor at IIT Patna
  • 2014-2016 : Scientific Staff at Technical University of Darmstadt, Darmstadt, Germany
  • 2012-2014 : Postdoctoral Research Fellow at CEA Grenoble,Grenoble, France
  • 2007-2011: Teaching Assistant at University of St. Andrews, UK
  • 2006–2007: Junior Research Fellow at Indian Institute of Science, Bangalore
Awards & Honours :
  • DST- Early Career Research Award
  • DST-INSPIRE Faculty Award (Direct Mode).
  • Postdoctoral Research Fellowship at TU Darmstadt (Germany), University of Southampton (UK), University of St. Andrews (UK).
  • Research Excellence Grant under the European Metrology Research Program (included salary, research contributions, travel).
  • EPSRC Doctoral Fellowship, UK
  • Doctoral Research Fellowship (Max. Planck Society, Germany)
  • CSIR/UGC NET, GATE, IIT-JAM, NGPE.
  • National Merit Scholarship (1999, 2001, 2004)
  • Academic Excellence Award (West Bengal) – 1996, 1999, 2001
  • Indian Academy of Science Fellowship.
Member of Professional bodies :
  • DPG (German Physics Society), Germany
  • IOP (Institute of Physics), UK
Books :  
Publications :
  • S. Rani, A. Nair, M. V. Kamalakar, S. J. Ray - Spin-selective response tunability in two-dimensional nanomagnets, Journal of Physics: Condensed Matter,https://doi.org/10.1088/1361-648X/ab8bf4
  • S. Rani, S. J. Ray – Two-dimensional C3N based sub-10 nanometer Biosensor, Physical Chemistry Chemical Physics, DOI: 10.1039/D0CP00546K
  • A. Nair, S. Rani, M. V. Kamalakar, S. J. Ray - Bi-stimuli assisted engineering and control of magnetic phase in monolayer CrOCl, Physical Chemistry Chemical Physics, DOI: 10.1039/D0CP01204A
  • P. Kumari, S. Majumder, S. Rani, A. Nair, K. Kumari, M. V. Kamalakar, S. J. Ray - High efficiency spin filtering in magnetic Phosphorene, Physical Chemistry Chemical Physics, 22, 5893-5901, 2020
  • Jean-Francois Dayen, S. J. Ray, Olof Karis, Ivan Vera-Marun, and M. Venkata Kamalakar - Two-dimensional and Van der Waals spinterfaces, Applied Physics Reviews, 7 (1), 011303 (2020)
  • Karuna Kumari, Ashutosh Kumar, Dinesh K Kotnees, Jayakumar Balakrishnan, Ajay D. Thakur and S. J. Ray - Structural and Resistive Switching Behaviour in Lanthanum Strontium Manganite-reduced Graphene Oxide Nanocomposite System, Journal of Alloys and Compounds, 815, 152213 (2020)
  • K Kumari, A Kumar, AD Thakur, S. J. Ray, Effect of temperature and magnetic field in resistive switching behavior of La0.7Ca0.3MnO3.rGO nano-composite, AIP Conference Proceedings 2220 (1), 080007, 2020
  • S. Rani, S. J. Ray - CO detection on Graphene, Nanomaterials and Energy, 8, 1-4 (2019)
  • K. Gaurav, B. Shantibhushan, S. J. Ray, A. Shrivastava - Acridinium based Organic Molecular Single Electron Transistor for High Performance Switching Applications, IEEE Transactions on Nanotechnology 18, 1148-1155 (2019)
  • A. Nair, P. Kumari, S. J. Ray - Dramatic magnetic phase designing in phosphorene, Physical Chemistry Chemical Physics 21 (42), 23713-23719 (2019)
  • A. Chaudhury, S. Majumdar, S. J. Ray – Proximity Induced Colossal Conductivity Modulation in Phosphorene, Physical Review Applied (APS), 11, 024056 (2019)
  • S. Rani, S. J. Ray – Detection of gas molecule using C3N island single electron transistor, Carbon, 144, 235 (2019)
  • S. J. Ray, M. V. Kamalakar – Unconventional Strain-Dependent Conductance Oscillations in Pristine Phosphorene, Physical Chemistry Chemical Physics, 20, 13508 (2018)
  • S. J. Ray, L. Alff – Superconductivity and Dirac Fermions in 112-phase Pnictides, Physica Status Solidi B (invited review), 254, 1, 1600163 (2017)
  • S. J. Ray - First-Principles study of MoS2, Phosphorene and Graphene based Single Electron Transistor for gas sensing applications, Sensors and Actuators B: Chemical, 222, 492-498 (2016). (Also invited for publication in the Journal of Visualized Experiments). (link)
  • S. J. Ray - Single Molecular Transistor as a Superior Gas Sensor, Journal of Applied Physics, 118, 034303 (2015). (link)
  • P. Clapera, S. J. Ray, X. Jehl, M. Sanquer, A. Valentian, S. Barraud - Design and cryogenic operation of a hybrid quantum-CMOS circuit, Physical Review Applied, 4,044009 (2015). (link)
  • S. J. Ray, M. V. Kamalakar, R. Chowdhury – Ab-initio studies of phosphorene island single electron transistor, Journal of Physics: Condensed Matter, 28, 195302 (2016). (link)
  • S. J. Ray - Humidity Sensor using a Single Molecular Transistor, Journal of Applied Physics, 118, 044307 (2015). (link)
  • S. J. Ray – Gate engineered performance of Single Molecular transistor, Journal of Applied Physics, 119, 204302 (2016) (link).
  • R. Retzlaff, A. Buckow, P. Komissinskiy, S. J. Ray, S. Schmidt, H. Muhlig, F. Schimidl, P. Seidel, J. Kurian, L. Alff - Superconductivity, role of pnictogen and Fe substitution in 112-LaPdxPn2(Pn = Sb, Bi), Physical Review B, 91, 104519 (2015). (link)
  • S. J. Ray - Single Molecular Transistor based Nanopore for the detection of Nicotine, Journal of Applied Physics, 116, 244307 (2014). (link)
  • S. J. Ray - Single atom impurity in a Single Molecular Transistor, Journal of Applied Physics, 116, 154302 (2014). (link)
  • S. J. Ray, R. Chowdhury - Double Gated Single Molecular Transistor for Charge Detection, Journal of Applied Physics, 116, 034307 (2014). (link)
  • S. J. Ray, A. S. Gibbs, S. J. Bending, P. J. Curran, E. Babaev, C. Baines, A. P. Mackenzie, S. L. Lee - Muon-Spin Rotation measurements of the vortex state Sr2RuO4: Type-1.5 superconductivity, vortex clustering and a crossover from a triangular to a square vortex lattice, Physical Review B, 89, 094504 (2014). (link)
  • M. Flokstra, S. J. Ray, S. J. Lister, J. Aarts, H. Luetkens, T. Prokscha, A. Suter, E. Morenzoni, S.L. Lee - Measurement of the Spatial Extent of Inverse Proximity in a Py/Nb/Py Superconducting Trilayer using Low-Energy Muon-Spin Rotation, Physical Review B, 89, 054510 (2014). (link)
  • D. O. G. Heron, S. J. Ray, S. J. Lister, C. M. Aegerter, H. Keller, P. H. Kes, G. I. Menon, S. L. Lee - Muon-Spin Rotation Measurements of an Unusual Vortex-Glass Phase in the Layered Superconductor Bi2.15Sr1.85CaCu2O8+δ, Physical Review Letters, 110, 107004 (2013). (link)
  • S. J. Ray, S. J. Lister, S. L. Lee, O. Hellwig, J. Stahn - Stoner enhanced paramagnetic influence on superconductivity in a superconductor/metallic heterostructure, Physica C, 487, 67-71 (2013). (link)
  • X. Jehl, B. Voisin, T. Charron, P. Clapera, S. J. Ray, B. Roche, M. Sanquer, S. Djordjevic, L. Devoille, R. Wacquez, M. Vinet - Hybrid Metal-Semiconductor Electron Pump for Quantum Metrology. Physical Review X, 3, 021012 (2013). (link)
  • R. Khasanov, T. Kondo, M. Bendele, Y. Hamaya, S. J. Ray, S. L. Lee, Tsunehiro Takeuchi - Suppression of the antinodal coherence of superconducting (Bi,Pb)2(Sr,La)2CuO6+δ as revealed by muon spin rotation and angle-resolved photoemission, Physical Review B (Rapid Communication),82, 020511(R) (2010). (link)
  • S. J. Lister, T. Thompson, J. Kohlbrecher, K. Takano, V. Venkataramana, S. J. Ray, M. P. Wismayer, M. A. de Vries, H. Do, Y. Ikeda, S. L. Lee - Size-dependent revershal of grains in perpendicular magnetic recording media measured by small angle polarized neutron scattering, Applied Physics Letters 97, 112503 (2010). (link)
  • S. J. Lister, M. P. Wismayer, V. Venkataramana, M. A. de Vries, S. J. Ray, S. L. Lee, T. Thomson, J. Kohlbrecher, H. Do, Y. Ikeda, K. Takano, C. Dewhurst - Small-angle polarized neutron studies of perpendicular magnetic recording media, Journal of Applied Physics 106, 063908 (2009). (link)
  • S. J. Ray, P. Clapera, X. Jehl, T. Charron, S. Djordjevic, L. Devoille, E. Potanina, G. Barinovs, V. Kashcheyevs - Modeling of an adiabatic tunable-barrier electron pump, Conference on Precision Electromagnetic Measurements, 446 - 447, 2014. (link)
  • P.Clapera, S. J. Ray, X. Jehl, M. Sanquer, A. Valentian, S. Barraud –A quantum device driven by an ON-Chip CMOS ring oscillator, 11th IEEE International Workshop on Low Temperature Electronics, 73-76, 2014. (link)
  • T. Charron, L. Devoille, S. Djordjevic, O. Seron, F. Piquemal, P. Clapera, S. J. Ray, X. Jehl, R. Wacquez, M. Vinet- Characterization of hybrid metal/semiconductor electron pumps for quantum metrology, Conference on Precision Electromagnetic Measurements, 442 - 443, 2014. (link)
Selected Presentations :
  • University of Cambridge, UK
  • University of Oxford, UK
  • London School of Nanotechnology, UK
  • University of Glasgow, UK
  • CEA Grenoble, France
  • Paul Scherrer Institute, Switzerland
  • Technical University of Darmstadt, Germany
  • University of Twente, Netherlands
  • Helmholtz-Zentrum, Berlin (HZB), Germany
  • University of Leeds, UK
  • International Max. Planck Research School, Dusseldorf, Germany
  • Max. Planck Institute for Microstructure Physics, Halle, Germany