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Hire Dr. S. J. R.

India

USD 20 /hr

Professor in Physics: expertise in scientific research, article publishing, data analysis, teaching, project supervision

Profile Summary

I am working as a professor in Physics with about 15 years of research experiences in areas like condensed matter physics, nanotechnology, microelectronics, magnetism, nano electronics, spintronics, neutron and muon scattering techniques, thin film systems, device physics, numerical simulation, material characterisation, density functional theory calculations etc. I compiled my PhD from University of St. Andrews (UK) and worked at CEA Grenoble (France), TU Darmstadt (Germany) as a research scientist thereafter. During this period, I worked at several university labs and research facilities in Oxford, Manchester, Leeds (UK), Zurich (Switzerland) with collaboration from industry (Hitachi, USA). I have extensive experience of independent project management, successful external research grant application, student supervision, teaching, article publications and anything that is related to high-level research. I have published articles in high impact journals like Physical Review Letters, Physical Review X, Carbon etc, been on the proposal review panels, journal editorial board member and section editor. I have worked as a reviewer of more than 20 journals from reputed publishing houses like Elsevier, Springer, Nature group, IOP, ACS etc and various conferences around the world. The recent research direction includes renewable energy, bioelectronics, energy storage and sustainability, energy efficient architectures like neuromorphic computing, memory circuit design etc. Let me know if I can be of any help !

Subject Matter Expertise

• ★ Data Analysis
• ★ Research
• ★ Technical & Scientific Writing
• ☆ Condensed Matter Physics
• ☆ Engineering Physics
• ☆ Statistical Mechanics
• ☆ Quantum Mechanics
• ☆ Computational Physics
• ☆ Applied Physics
• ☆ Biosensors
• ☆ Scientific Proofreading & Editing

Services

• Writing
• Research
• Consulting
• Data & AI
• Product Development

Writing Clinical Trial Documentation, Technical Writing, Copywriting, Newswriting

Research Market Research, Feasibility Study, Fact Checking, Gray Literature Search, Systematic Literature Review, Secondary Data Collection

Consulting Scientific and Technical Consulting

Data & AI Statistical Analysis, Algorithm Design-Non ML, Data Visualization

Product Development Formulation

Work Experience

Assistant Professor

Indian Institute of Technology Patna

March 2016 - Present

Research Scientist

Technische Universitat Darmstadt

2014 - 2016

Postdoctoral Researcher

CEA Grenoble

2012 - 2014

Teaching Assistant

University of Saint Andrews

2007 - 2011

Education

PhD (Physics and Astronomy)

University of Saint Andrews

2007 - 2012

JRF

Indian Institute of Science Bangalore

January 2006 - January 2007

Masters in Science (Physics)

Indian Institute of Technology Kanpur

2004 - 2006

Certifications

• Neutron Scattering

  University of Oxford, UK

  September 2009 - September 2009

Publications

JOURNAL ARTICLE

Karuna Kumari, Ashutosh Kumar, Ajay D Thakur, S.J. Ray(2021). Charge transport and resistive switching in a 2D hybrid interface . Materials Research Bulletin. 139. p. 111195. Elsevier {BV}

S Kar, A K Nair, S J Ray(2021). Supreme enhancement of ferromagnetism in a spontaneous-symmetry-broken 2D nanomagnet . Journal of Physics D: Applied Physics. {IOP} Publishing

Karuna Kumari, Ajay D. Thakur, S.J. Ray(2021). The effect of graphene and reduced graphene oxide on the resistive switching behavior of La0.7Ba0.3MnO3 . Materials Today Communications. 26. p. 102040. Elsevier {BV}

S. J. Ray, A. K. Nair (2021). Electronic phase-crossover and room temperature ferromagnetism in a two-dimensional (2D) spin lattice . RSC Advances.

S. J. Ray, S. Mishra, S. Rani (2020). Single electron transistor based nanosensor for DNA and RNA detection . Journal of Applied Physics.

S Rani, A K Nair, M Venkata Kamalakar, S J Ray(2020). Spin-selective response tunability in two-dimensional nanomagnet . Journal of Physics: Condensed Matter. {IOP} Publishing

Jean-Francois Dayen, Soumya J. Ray, Olof Karis, Ivan J. Vera-Marun, M. Venkata Kamalakar (2020). Two-dimensional van der Waals spinterfaces and magnetic-interfaces . Applied Physics Reviews.

Karuna Kumari, Ashutosh Kumar, Dinesh K. Kotnees, Jayakumar Balakrishnan, Ajay D. Thakur, S.J. Ray(2020). Structural and resistive switching behaviour in lanthanum strontium manganite - Reduced graphene oxide nanocomposite system . Journal of Alloys and Compounds. 815. p. 152213. Elsevier {BV}

A. K. Nair and S. Rani and M. Venkata Kamalakar and S. J. Ray(2020). Bi-stimuli assisted engineering and control of magnetic phase in monolayer CrOCl . Physical Chemistry Chemical Physics. 22. (22). p. 12806--12813. Royal Society of Chemistry ({RSC})

S. J. Ray, S. Rani(2020). Two-dimensional C3N based sub-10 nanometer biosensor . Physical Chemistry Chemical Physics. Royal Society of Chemistry ({RSC})

S. J. Ray, P. Kumari, S. Majumder, S. Rani, A. K. Nair, K. Kumari, M. Venkata Kamalakar(2020). High efficiency spin filtering in magnetic phosphorene . Physical Chemistry Chemical Physics. Royal Society of Chemistry ({RSC})

Shivani Rani, Soumya Jyoti Ray(2019). Detection of CO using a graphene-island-based single-electron transistor . Nanomaterials and Energy. 8. (2). p. 135--138. Thomas Telford Ltd.

S. Rani, S.J. Ray(2019). Detection of gas molecule using C3N island single electron transistor . Carbon. 144. p. 235--240. Elsevier {BV}

Chaudhury, A., Majumder, S., Ray, S.J.(2019). Proximity-Induced Colossal Conductivity Modulation in Phosphorene . Physical Review Applied. 11. (2).

S. J. Ray, A. K. Nair, P. Kumari, M. Venkata Kamalakar(2019). Dramatic magnetic phase designing in phosphorene . Physical Chemistry Chemical Physics. Royal Society of Chemistry ({RSC})

Rani, S., Ray, S.J.(2019). Detection of gas molecule using C<inf>3</inf>N island single electron transistor . Carbon. 144. p. 235-240.

Ray, S.J., Venkata Kamalakar, M.(2018). Unconventional strain-dependent conductance oscillations in pristine phosphorene . Physical Chemistry Chemical Physics. 20. (19). p. 13508-13516.

S. J. Ray, M. Venkata Kamalakar(2018). Unconventional strain-dependent conductance oscillations in pristine phosphorene . Physical Chemistry Chemical Physics. Royal Society of Chemistry ({RSC})

Ray, S.J., Alff, L.(2017). Superconductivity and Dirac fermions in 112-phase pnictides . Physica Status Solidi (B) Basic Research. 254. (1).

S. J. Ray(2016). Gate engineered performance of single molecular transistor . Journal of Applied Physics. 119. (20). p. 204302. {AIP} Publishing

Ray, S.J.(2016). Gate engineered performance of single molecular transistor . Journal of Applied Physics. 119. (20).

Ray, S.J., Venkata Kamalakar, M., Chowdhury, R.(2016). Ab initio studies of phoshorene island single electron transistor . Journal of Physics Condensed Matter. 28. (19).

Ray, S.J.(2016). First-principles study of MoS&lt;inf&gt;2&lt;/inf&gt;, phosphorene and graphene based single electron transistor for gas sensing applications . Sensors and Actuators, B: Chemical. 222. p. 492-498.

S. J. Ray(2015). Humidity sensor using a single molecular transistor . Journal of Applied Physics. 118. (4). p. 044307. {AIP} Publishing

S. J. Ray(2015). Single molecular transistor as a superior gas sensor . Journal of Applied Physics. 118. (3). p. 034303. {AIP} Publishing

Clapera, P., Ray, S., Jehl, X., Sanquer, M., Valentian, A., Barraud, S.(2015). Design and cryogenic operation of a hybrid quantum-CMOS circuit . Physical Review Applied. 4. (4).

Ray, S.J.(2015). Single molecular transistor as a superior gas sensor . Journal of Applied Physics. 118. (3).

Ray, S.J.(2015). Humidity sensor using a single molecular transistor . Journal of Applied Physics. 118. (4).

Retzlaff, R., Buckow, A., Komissinskiy, P., Ray, S., Schmidt, S., M&#252;hlig, H., Schmidl, F., Seidel, P., Kurian, J., Alff, L.(2015). Superconductivity and role of pnictogen and Fe substitution in 112- LaPdxPn2 (Pn=Sb,Bi) . Physical Review B - Condensed Matter and Materials Physics. 91. (10).

S. J. Ray(2014). Single molecule transistor based nanopore for the detection of nicotine . Journal of Applied Physics. 116. (24). p. 244307. {AIP} Publishing

Ray, S.J.(2014). Single atom impurity in a single molecular transistor . Journal of Applied Physics. 116. (15).

Ray, S.J., Gibbs, A.S., Bending, S.J., Curran, P.J., Babaev, E., Baines, C., Mackenzie, A.P., Lee, S.L.(2014). Muon-spin rotation measurements of the vortex state in Sr2 RuO4: Type-1.5 superconductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice . Physical Review B - Condensed Matter and Materials Physics. 89. (9).

Ray, S.J.(2014). Single molecule transistor based nanopore for the detection of nicotine . Journal of Applied Physics. 116. (24).

Flokstra, M.G., Ray, S.J., Lister, S.J., Aarts, J., Luetkens, H., Prokscha, T., Suter, A., Morenzoni, E., Lee, S.L.(2014). Measurement of the spatial extent of inverse proximity in a Py/Nb/Py superconducting trilayer using low-energy muon-spin rotation . Physical Review B - Condensed Matter and Materials Physics. 89. (5).

Ray, S.J., Chowdhury, R.(2014). Double gated single molecular transistor for charge detection . Journal of Applied Physics. 116. (3).

Heron, D.O.G., Ray, S.J., Lister, S.J., Aegerter, C.M., Keller, H., Kes, P.H., Menon, G.I., Lee, S.L.(2013). Muon-spin rotation measurements of an unusual vortex-glass phase in the layered superconductor Bi<inf>2.15</inf>Sr<inf>1.85</inf>CaCu<inf>2</inf>O <inf>8+δ</inf> . Physical Review Letters. 110. (10).

Jehl, X., Voisin, B., Charron, T., Clapera, P., Ray, S., Roche, B., Sanquer, M., Djordjevic, S., Devoille, L., Wacquez, R., et al.(2013). Hybrid metal-semiconductor electron pump for quantum metrology . Physical Review X. 3. (2).

Ray, S.J., Lister, S.J., Lee, S.L., Hellwig, O., Stahn, J.(2013). Stoner enhanced paramagnetic influence on superconductivity in a superconductor/metallic heterostructure . Physica C: Superconductivity and its Applications. 487. p. 67-71.

Lister, S.J., Thomson, T., Kohlbrecher, J., Takano, K., Venkataramana, V., Ray, S.J., Wismayer, M.P., De Vries, M.A., Do, H., Ikeda, Y., et al.(2010). Size-dependent reversal of grains in perpendicular magnetic recording media measured by small-angle polarized neutron scattering . Applied Physics Letters. 97. (11).

Khasanov, R., Kondo, T., Bendele, M., Hamaya, Y., Kaminski, A., Lee, S.L., Ray, S.J., Takeuchi, T.(2010). Suppression of the antinodal coherence of superconducting (Bi,Pb ) <inf>2</inf>(Sr,La )<inf>2</inf>CuO<inf>6+δ</inf> as revealed by muon spin rotation and angle-resolved photoemission . Physical Review B - Condensed Matter and Materials Physics. 82. (2).

Lister, S.J., Wismayer, M.P., Venkataramana, V., De Vries, M.A., Ray, S.J., Lee, S.L., Thomson, T., Kohlbrecher, J., Do, H., Ikeda, Y., et al.(2009). Small-angle polarized neutron studies of perpendicular magnetic recording media . Journal of Applied Physics. 106. (6).

CONFERENCE PAPER

Ray, S.J., Clapera, P., Jehl, X., Charron, T., Djordjevic, S., Devoille, L., Potanina, E., Barinovs, G., Kashcheyevs, V.(2014). Modeling of an adiabatic tunable-barrier electron pump . CPEM Digest (Conference on Precision Electromagnetic Measurements). p. 446-447.

Charron, T., Devoille, L., Djordjevic, S., Seron, O., Piquemal, F., Clapera, P., Ray, S.J., Jehl, X., Wacquez, R., Vinet, M.(2014). Characterization of hybrid metal/semiconductor electron pumps for quantum metrology . CPEM Digest (Conference on Precision Electromagnetic Measurements). p. 442-443.

Clapera, P., Ray, S., Jehl, X., Sanquer, M., Valentian, A., Barraud, S.(2014). A quantum device driven by an on-chip CMOS ring oscillator . 2014 11th International Workshop on Low Temperature Electronics, WOLTE 2014. p. 73-76.