Research

Dr. Subhash's research aims to unveil the relevant correlations that control the physics in the strongly correlated regime, and to develop few new systems at low-dimensions useful for novel magnetoelectronic and microwave devices. Understanding the physics of strongly correlated electron systems is one of the most fascinating and challenging problems in the condensed matter physics. In a recent work, he addressed the Quantum Aspects in Transverse-field Ising Chain Quasi one-Dimensional Columbites and reported the novel methodology of estimating exchange interactions and ground-state spin configuration. Some of his recent publications also addresses the new methodology to establish the H-T phase diagram in several Columbites and spinels. Some of this recent work also reported Re-entrant spin-glass behavior and complex magnetic properties of the few ferrimagnetic spinels and exchange bias in glassy-antiferromagnets.h-index 23, i10-index 43

Dr. Subhash's research also focuses on the Magneto-transport Phenomena in Charge-Ordered Manganites, Spin-Ice and Spin-Glass phenomena synthesis and characterization of Nanostructured Magnetic Materials, High-k dielectrics and Relaxor-ferroelectrics. In a latest report, he demonstrated the origin of relaxor like behavior in Dy2O3 doped KNaNbO3 ceramics and Zn1-xNixO/NiO two-phase composites.

Spintronic Materials - Interlayer coupling in multilayers, Magneto-transport properties, Multiferroics, and Half metals
Magnetocaloric Effect - Magnetic Cooling in thin-film Superlattices/Heterostructures and Mixed valence compounds
Nanostructures - Controlled synthesis and charecterization of nanometer size magnetic and magnetic-semiconductors
Band-gap Engineering - III-V, II-V, IV-VI groups based binary, ternary and quaternary coumpound semiconductors
Ferroelectrics and High-k Dielectrics - KNN based Relaxor-Ferroelectric oxides and ZrO2 based high k-dielectrics

Research Scholars

Name :Dr.Deep Chandra Joshi
Registration id: 136121010 (Completed)Currently at Upplsala University Sweden
Year of Registration: 2013-09 May 2018
Research Topic: Investigation of the dielectric properties of wide band-gap Mott Insulators and their composites
Email id: j.deep@iitg.ernet.in

Name : Dr.Sanjib Nayak
Registration id: 136121018 (Completed)Currently at City University of Hong Kong
Year of Registration: 2013-28 April 2018
Research Topic: Investigation of the magnetic and magneto-dielectric properties of few complex spinels
Email id: sanjib.nayak@iitg.ernet.in

Name : Dr. Robin T George
Registration id: 146121015
Year of Registration: 2014
Research Topic: Ferroelectric materials
Email id: r.george@iitg.ernet.in

Name : Sayandeep Ghosh
Registration id: 166121011 (Completed) Currently working as Postdoctoral Researcher, Department of Physics, Chungnam Nat'l Univ and Kunsan Nat'l University, South Korea
Year of Registration: 2016-2021
Research Topic: Electronic structure Calculations of Spinel Oxides
Email id: sayandeep23@iitg.ernet.in

Name : Dr. Prativa Pramanik
Registration id: 156121022 (Completed)Currently at Upplsala University Sweden
Year of Registration: 2015-28th May 2020
Research Topic: Synthesis and Characterization of Spinel Nanostructures
Email id: p.prativa@iitg.ernet.in

Name : Harshita Singh
Registration id: 216121010
Year of Registration: 2022
Research Topic: Magnetic and Dielectric Propoerties of Kagome Lattices
Email id: harshita.singh@iitg.ac.in

Name : Arpita Deb Singha
Registration id: 216121003 at Department of Physics IIT Guwahati
Year of Registration: 2022
Research Topic: Highly Frustrated Spinel Oxide Nanostructures
Email id: arpitadeb@iitg.ac.in

Name : Shaona Das
Registration id: 186121102
Year of Registration: 2018-March 2023
Research Topic: Superlattices & Nanostructures
Email id: shaona.das@iitg.ac.in

Name : Arijit Datta
Registration id: 226121020
Year of Registration: July-2022
Research Topic: Charge Ordered Perovskites
Email id: arijitdatta21@iitg.ac.in

Name : Ravi Kiran Dokala
Registration id: 186121101
Year of Registration: 2018-Nov 2023
Research Topic: Perovskite Superlattices & Heterostructures
Email id: dokala.ravi@iitg.ac.in

Name : Maruthi R
Registration id: 196121018
Year of Registration: 2019-March 2023
Research Topic: Frustrated Ising-Chain Magnets
Email id: r.maruthi@iitg.ac.in

Name : Mouli Roy Chowdhury
Registration id: 206121023
Year of Registration: 2020
Research Topic: Antiferromagnetic Spintronics
Email id: mouli.roy@iitg.ac.in

Name : Suchit Kumar Jena
Registration id: 186121027
Year of Registration: 2018-March 2023
Research Topic: Inverse and Normal Cubic Spinels
Email id: suchit18@iitg.ac.in

Name : Ms. Priti Sharma
Registration id: 236121118
Year of Registration: Jan-2024
Research Topic: Magnetodielectric Behavior of Honeycomb Lattice Compounds
Email id: s.priti@iitg.ac.in
National/Institute Post Doctoral Fellow (N-PDF & I-PDF)

Name : Dr. Sudipta Chakrabarty (Ph. D. IIEST, Shibpur)
IPDF Mentor: Prof. S. Thota
Year of Registration: 2024-2026
Research Topic: High-K dielectrics and Electrical Propoerties of Highly Degenerate Semiconductors

Name :Dr. Priyanka Tiwari (Ph. D. IIT BHU, Varanasi)
NPDF Mentor: Dr. S. Thota
Year of Registration: 2022-2024
Research Topic: Anomalous Nernst effect in Perovskites

Name : Dr. Tanveer Ahmad Dar (Ph. D. Devi Ahilya University, Indore)
Mentor: Dr. S. Thota
Year of Registration: 2017
Research Topic: Experimental studies of high k-dielectrics and Mott-insulators

Former B.Tech project students:

Name :Vedant Pramod Khadse
Registration id: 190121019
Year of Registration: 2021-22
Research Topic: Charge-Ordering Phenomena in Perovskites

Name :SOHAM AVINASH ATKAR
Registration id: 190121019
Year of Registration: 2022
Research Topic: Dielectric and Magnetic Properties of Perovskites

Name :Naga Mahesh Gollapalli
Registration id: 150121013
Year of Registration: 2015-19
Research Topic: Atomistic simulation of Potassium and Potassium Oxide

Name : Tere Nagendra Babu
Registration id: 10012132
Year of Registration: 2010-17
Research Topic: High frequency Dielectric studies and Phonon Dynamics of Sodium doped Nickel-Oxide

Name :Keelu Akshit
Registration id: 150121019
Year of Registration: 2015-19
Research Topic: Synthesis and Characterization of Mg doped NiO

Name : Rohan Soni
Registration id: 140121036
Year of Registration: 2013-17
Research Topic: Temperature Dependence of Dielectric Properties of Ferroelectric-Mott Insulator Composites

Name : D. Harish (currently at University of Oregon, Eugene, USA )
Registration id: 10012114
Year of Registration: 2010-14
Research Topic: Investigation of the Electrical Characteristics of Ni doped Zinc-Oxide for Applications in Varistor Devices

Name : Mr. D. Roy (currently at Purdue University, West Lafayette, IN, United States)
Department: Electrical Engineering
Year of Registration: 2011-15

Name : Mr. B. B. Singh (2014-2016)
Registration id: 120121008
Year of Registration: 2012-16
Research Topic: Investigate the structural, optical and electrical properties of Cobalt Orthotitanate

Former M. Sc. Students

Name : Mr.Amarjit Das (2024-2025)
Registration id: 232121010
Year of Registration: 2024-2025
Research Topic: Magnetic and Thermoelectric Properties of Holonium Based Perovskites

Name : Mr.Subham Ghosh (2023-2024)
Registration id: 222121051
Year of Registration: 2023-2024
Research Topic: Probing the Charge Ordering in Manganites

Name : Mr.Rana Das (2022-2023)
Registration id: 212121038
Year of Registration: 2022-2023
Research Topic: Magnetism in Complex Spinels

Name : Debojyoti Datta Choudhury(2022-2023)
Registration id: 212121016
Year of Registration: 2022-2023
Research Topic: Crystal structural of Invese Spinels

Name : Ms.Arjyama Bordoloi(2021-2022)(pursuing PhD at University of Rochester, USA)
Registration id: 202121009
Year of Registration: 2021-2022
Research Topic: Charge Ordering Phenomena in Pervoskites

Name : Ms.Joya Ghosh Dastider(2019-2021)
Registration id: 192121015
Year of Registration: 2019-2021
Research Topic: Electronic Structure of Cuprospinel

Name : Ms. Shalini Kushwaha
Registration id: 182121040
Year of Registration: 2018-20
Research Topic: Quantum Heisenberg Antiferromagnets

Name : Dr. Sobhit Kumar Singh (currently as Assistant Prpfessor at University of Rochester, USA)
Registration id: 11212133
Year of Registration: 2011-13
Research Topic: Synthesis and charecterization of Ferromagnetic MnCo2O4

Name : Mr. Bhupesh Yadav
Registration id: 172121010
Year of Registration: 2017-19
Research Topic: Evidence for Field Induced Phase Transitions and Enhanced Long-range Ordering in Fe doped MnCo2O4 Spinels

Name : Mr. Mahender Sehrawat
Registration id: 172121021
Year of Registration: 2017-19
Research Topic: Crystal structure and Magnetic Properties of Germanium doped MnCo2O4 Spinels

Name : Mr. Ayan Malik (currently at Burdwan University, WB, India)
Registration id: 11212106
Year of Registration: 2011-13
Research Topic: Growth, Phase stability and Magnetic behaviour of cubic Zirconia stabilized with first Row 3d Transition Metal

Name : Ms. P. Kumari
Registration id: 122121033
Year of Registration: 2012-14
Research Topic: Synthesis and Characterization of Ni doped Zinc-Oxide for Applications in Varistor Devices

Name : Ms. Jyotsna Dhillon(currently at University of North Texas, Denton, USA)
Registration id: 142121023
Year of Registration: 2014-16
Research Topic: Investigation of the electrical properties of few complex spinel Cobaltites

Name : Mr. Rakesh Sarkar(2014-2016)
Registration id: 142121038
Year of Registration: 2014-16
Research Topic: Synthesis and characterization of MgCo2O4
 Nanoparticles

Name : Mr. Ameer Mehr(2016-2018)
Registration id: 162121005
Year of Registration: 2016-18
Research Topic: Dielectric Behavior of Alkaline Niobates and their Composites

Name : Mr. Anshul Thakur(2016-2018)
Registration id: 162121007
Year of Registration: 2016-18
Research Topic: Frustrated magnets and kagome lattices