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DEPARTMENT OF PHYSICS
INDIAN INSTITUTE OF TECHNOLOGY ROORKEE
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G.D. Verma
Professor
g.varma[at]ph.iitr.ac.in
91-01332-285353
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Biosketch
Educational Details
Professional Background
Research
Projects
Publications
Patents
Books
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Honours and Awards
Honors
Memberships
Teaching Engagements
Teaching Engagements
Students
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Associate Scholars
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Events
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Administrative Positions
Miscellaneous
Research Interests
Experimental Condensed Matter Physics, Superconductivity, Magnetism, Gas sensing, Supercapacitors and nanomaterials., Superconductivity, Magnetotransport properties of MgB2 and Fe-chalcogenide superconductors. , Magnetism and Magnetic materials, Magnetic and magnetotransport properties of perovskite manganites and spinel ferrite/cobaltite., Gas sensing and Electrochemical Properties, 2 D materials (rGO/MoS2) -metal oxides nanocomposites.
BioSketch
Educational Details
Banaras Hindu University, Varanasi
1982
B.Sc. (Hons), Physics (Hons), Chemistry, Maths
Banaras Hindu University, Varanasi
1985
M.Sc., Physics
Banaras Hindu University, Varanasi
1994
Ph.D., Physics
Research
Projects
TOPIC START DATE FIELD DESCRIPTION FINANCIAL OUTLAY FUNDING AGENCY OTHER OFFICERS
Investigations of Hg-based cuprate and MgB2 superconductors 01 Jan 2008 Investigations of Hg-based cuprate and MgB2 superconductors 7.70 Lakhs CSIR
Synthesis and characterization of ordered nanostructures (wires) of ZnO using anodized porous alumin 01 Jan 2012 Synthesis and characterization of ordered nanostructures (wires) of ZnO using anodized porous alumin 16.10 Lakhs BRNS
Growth and investigation of a new non-cuprate high temperature superconductor 01 Jan 2012 Growth and investigation of a new non-cuprate high temperature superconductor 25.35 Lakhs DST Indo-Swiss joint project
Growth and investigation of Fe-chalcogenide and alkali doped Fe-selenide superconductors. 01 Jan 2015 Growth and investigation of Fe-chalcogenide and alkali doped Fe-selenide superconductors. 14.92 Lakhs CSIR
Investigation of Fe-based chalcogenide superconductors 01 Jan 2016 Investigation of Fe-based chalcogenide superconductors 42.42 Lakhs SERB




Publications

Last five years

 

  1. Jyoti and G. D. Varma. "Morphology-dependent room temperature NO2 detection of CuO nanostructure/rGO composites." Applied Physics A 126.2 (2020): 143.
  2. R. Kumar and G. D. Varma. "Study of TAFF and vortex phase of FexTe 0.60 Se 0.40 (0.970≤ x≤ 1.030) single crystals." Physica Scripta (2020).
  3. D. S. Raghav, S. Kumari, H. K. Singh and G. D. Varma, “Structure, magnetism and electrical transport of sol-gel derived La0.30Pr0.30Ca0.40MnO3: Elucidating consequences of size effect”, J. Magnetism and Magnetic Materials 497 (2020) 166003.
  4. Jyoti and G. D. Varma, “Enhanced room temperature sensitivity of Ag-CuO nanobrick/reduced graphene oxide composite for NO2” J. Alloys and Compounds 806 (2019) 1469.
  5. R. Kumar and G. D. Varma, Effect of Co Doping on the Superconducting Properties of Polycrystalline Fe1.01-xCoxTe0.52Se0.48, Journal of Superconductivity and Novel Magnetism 32 (2019)3715. 
  6. Kumari, Suman, Shital Chauhan, D. S. Raghav, P. K. Siwach, G. D. Varma, and H. K. Singh. "Suppression of Spin Glass Behavior in Phase Separated La0.22 Pr0.40Ca0.38MnO3 by Nanostructuring." IEEE Transactions on Magnetics 55, no.12 (2019): 1-7.
  7. R. Kumar, A. Mitra and G. D. Varma, Study of vortex glass-liquid transition in superconducting Fe(Te,Se) thin films on LaAlO3 substrates, Journal of Applied Physics 125(2019) 193902.
  8. Jyoti and G. D. Varma, Synthesis of CuO-ZnO/rGO ternary composites for superior NO2 gas sensor at room temperature, Materials Research Express 3 (2019) 035011. 
  9. N. Kanaujiya, N. Kumar, Y. Sharma and G. D. Varma, Probing the Electrochemical Properties of Flower Like Mesoporous MoS2 in Different Aqueous Electrolytes, Journal of Electronic Materials 48 (2019) 904. 
  10. Neha Kanaujiya, Nagesh Kumar, A.K. Srivastava, Yogesh Sharma, G.D. Varma, One-step synthesized mesoporous MnO2@MoS2 nanocomposite for high Performance energy storage devices, Journal of Electroanalytical Chemistry 824 (2018)226. 
  11. Jyoti, A. K. Srivastava and G. D. Varma, “Highly selective and efficient room temperature NO2 gas sensors based on Zn-doped CuO nanostructure-rGO hybrid”, J. Mater. Sci: Materials in Electronics 29 (2018) 10640. 
  12. R. Kumar, Sudesh and G. D. Varma,“Superconducting, magnetic and magnetotransport properties of FeTe1-xSex single crystals”, AIP Advances 8 (2018) 055819. 
  13. K. Yadav, H. K. Singh, K. K. Maurya and G. D. Varma,“Thickness-dependent magnetic and transport properties of La0.5Sr0.5MnO3 thin films deposited by DC magnetron sputtering on the LaAlO3 substrate”, Applied Physics A: Materials Science and Processing 124 (2018) 66. 
  14.  K. Yadav, M. P. Singh, F. S. Razavi and G. D. Varma, “Effect of Ti4+ doping on Magnetic properties of charge ordered Bi0.3Ca0.7MnO3”, Materials Research Express 4 (2017) 076102.
  15. Puthucheri Smitha, Isha Singh, Mohd Najim, Ravi Panwar, Dharmendra Singh, Vijaya Agarwala and G. D. Varma, “Development of thin broad band radar absorbing materials using nanostructured spinel ferrites”, J Mater Sci: Mater Electron 27 (2016)7731.
  16. Stuti Rani, Yogesh Sharma and G. D. Varma, “Structurally induced spin canting and metamagnetism in CoFe2O4 nanoparticles synthesized via co-precipitation method”, J. Superconductivity and Novel Magnetism 28 (2015) 3633.
  17. N. Mishra, N. Dabra, A. Nautiyal, J. S. Hundal, G. D. Varma, N. P. Pathak and R. Nath, “Ferroelectric and Switching Properties of Spray Deposited NaNO2: PVA Composite Films on Porous Silicon” Ferroelectric Letter Section 42 (2015)75.
  18. Stuti Rani and G. D. Varma, “Superparamagnetism and metamagnetic transition in Fe3O4 nanoparticles synthesized via co-precipitation method at different pH”, Physica B 472(2015)66.
  19. N. Kumar, B. K. Gupta, A. K. Srivastava, H. S. Patel, P. Kumar, I. Banerjee, T. N. Narayanan and G. D. Varma, “Multifunctional Two-Dimensional Reduced Graphene Oxide Thin Film for Gas Sensing and Antibacterial Applications”, SCIENCE OF ADVANCED MATERIALS 7(2015)1125.
  20. Sudesh, S. Das, C. Bernhard and G. D. Varma, “Effect of combined addition of Graphene oxide and citric acid on superconducting properties of MgB2”, Physica C 509(2015) 49.
  21. Umesh Kumar Gaur, Anil Kumar and G. D. Varma, “Fe-induced morphological transformation of 1-D CuO nanochains to porous nanofibers with enhanced optical, magnetic and ferroelectric properties”, JOURNAL OF MATERIALS CHEMISTRY C 3(2015)4297. 
  22. N. Kumar, A. K. Srivastava, R. Nath, B. K. Gupta, G. D. Varma, “Probing the highly efficient room temperature ammonia gas sensing properties of a luminescent ZnO nanowire array prepared via an AAO-assisted template route”, DALTON TRANSACTIONS 43(2014)5713.
  23. Sudesh, S. Das, C. Bernhard and G. D. Varma, “Enhanced superconducting properties of rare-earth oxides and graphene oxide added MgB2” Physica C 505 (2014) 32.
  24. Sudesh, S. Das, C. Bernhard, T. Shripathi and G. D. Varma, “Study of Superconducting Properties of ferrocene-added MgB2, Phys. Status Solidi A 211(2014) 1503. 
  25. Umesh Kumar Gaur, Anil Kumar and G. D. Varma, “The synthesis of self- Assembled Polycrystalline 1-D CuO nanostructures in aqueous medium and a study of their multifunctional features, CrystEngComm 16(2014)3005.
  26. Nagesh Kumar, A. K. Srivastava, R. Nath, Bipin Kumar Gupta and G. D. Varma, “Probing the highly efficient room temperature ammonia gas sensing properties of a luminescent ZnO nanowire array prepared via an AAO-assisted template route”, Dalton Transactions 43(2014)5713.
Honors And Awards
MemberShips
INDIAN PHYSICS ASSOCIATION
31 Aug 2020 - Present
Member
Teaching Engagements
Teaching Engagements
Semiconductor Device physics ( PHN-709 )
Autumn
Analog Electronics ( PHN-102 )
Spring
Semiconductor Devices and Applications ( PHN-513 )
Autumn
Semiconductor microelectronics Technology ( PHN-724 )
Spring
Students
SuperVisions
Low field magnetoresistive behavior of La1-xAxMnO3 (A= Sr, Ca) and Sr2FeMoO6 perovskites
31 Aug 2020 - Present
Other Supervisors: , Scholar: ANURAG GAUR
Synthesis and characterization of oxide based diluted magnetic semiconductors
31 Aug 2020 - Present
Other Supervisors: , Scholar: VIJAY KUMAR SHARMA
Study of doping effect on structural and superconducting properties of MgB2 superconductor
31 Aug 2020 - Present
Other Supervisors: , Scholar: NIGAMANANDA OJHA
Study of A, B-site doped charge ordered Bi1-xCaxMnO3 and (Nd/La)0.5Sr0.5MnO3 perovskites
31 Aug 2020 - Present
Other Supervisors: , Scholar: KAMLESH YADAV
Fabrication and study of ZnO nanowires, rGO and rGO-ZnO nanocomposite based gas sensors
31 Aug 2020 - Present
Other Supervisors: , Scholar: NAGESH KUMAR
Study of superconducting properties of MgB2 and Fe-chalcogenide superconductors
31 Aug 2020 - Present
Other Supervisors: , Scholar: SUDESH
Structural, optical and magnetic properties of spinel oxide nanoparticles
31 Aug 2020 - Present
Other Supervisors: , Scholar: STUTI RANI
Synthesis of pure and doped CuO nanostructures and their multifunctional properties
31 Aug 2020 - Present
Other Supervisors: , Scholar: UMESH KUMAR GAUR
Investigations on synthesis, structural and superconducting properties of Fe(Te,Se) superconductors
31 Aug 2020 - Present
Other Supervisors: , Scholar: ROHIT KUMAR
Synthesis and Characterization of CuO-rGO based nanocomposites for NO2 sensors
31 Aug 2020 - Present
Other Supervisors: , Scholar: JYOTI
Synthesis and characterization of nanocrystalline perovskite manganites
01 Jan 2015 - Present
Other Supervisors: , Scholar: DHARMENDRA SINGH RAGHAV
Growth and characterization of 2-D materials based nanocomposites
01 Jan 2015 - Present
Other Supervisors: , Scholar: NEHA KANAUJIA
Synthesis of graphene based nanocomposites, their characterization and gas sensing behaviour
01 Jan 2016 - Present
Other Supervisors: , Scholar: ATUL KUMAR
Synthesis and characterization of Fe- Chalcogenide and Bi- based topological Insulators
01 Jan 2017 - Present
Other Supervisors: , Scholar: HIMANSHU CHAUHAN
Growth and characterization of 2D materials nanocomposites and its application in super-capacitor
01 Jan 2018 - Present
Other Supervisors: , Scholar: PREM SAGAR SHUKLA
Development of broadband microwave absorbing materials
01 Jan 2018 - Present
Other Supervisors: , Scholar: ANSHIKA VERMA
Nano-magnetism and Magnetic Materials
01 Jan 2019 - Present
Other Supervisors: , Scholar: SHIVAM KUMAR MIGLANI
Associate Scholars
Dharmendra S. Raghav
Magnetism and Magnetic Materials
Neha Kanaujia
Energy Storage Devices, Supercapacitors
ATUL KUMAR
Gas and Humidity Sensors and Devices fabrication for VOCs
Himanshu Chauhan
Fe-Chalcogenides Superconductors, Topological Insulators
Anshika Verma
Radar absorbing Materials
Prem Sagar Shukla
Energy Storage Devices, Supercapacitors
Shivam Kumar Miglani
Nano-magnetism and Magnetic Materials
Miscellaneous
Visits
UNIVERSITY OF FRIBOURG, SWITZERLAND
2020-08-31
UNDER INDO-SWISS JOINT PROJECT
DEPARTMENT OF PHYSICS, UNIVERSITY OF NORTH DAKOTA
2020-08-31
DELIVERED A LECTURE AND DISCUSSIONS
R.R.C.A.T. INDORE
2020-08-31
Research purpose
C.S.I.R. NATIONAL PHYSICAL LABORATORY, NEW DELHI.
2020-08-31
Research purpose