International Journals

Research work presented in International & National conferences

Evolution of Tunable Energy Bandgap and Magnetic Anisotropy in Mn Substituted Ferrimagnetic Nickel-Chromates

A Datta, T Sarkar, M RoyChowdhury, P Tiwari, H Singh, JK Dey, and S Thota
Journal of Physics: Condensed Matter In-press (2024)IOP

Interplay of lattice-spin-orbital coupling and Jahn-Teller effect in noncollinear spinel Ti_xMn_1-x(Fe_yCo_1-y)₂O₄: A neutron diffraction study

P Pramanik, A D Singha, M Reehuis, S Pittala, D C Joshi, T Sarkar, M Tovar, A Hoser, J,-U hoffmann, S Thota
Journal of Physics: Condensed Matter 36, 355601 (2024)IOP

Praseodymium induced symmetry switching and electrochemical characteristics of LaCoO₃ nanostructures

P Tiwari, D Gangwar, JK Dey, FI Saldaña, J Kumar, and S Thota
J. Phys. Chem. Sol. 196, 112366 (2024) Elsevier

Conductive single-phase SrMoO₃ epitaxial films synthesized in pure Ar ambience via plasma-assisted radio frequency sputtering

Mouli Roy-Chowdhury, Cong He, Ke Tang, Hiroki Koizumi, Zhenchao Wen, Subhash Thota, Hiroaki Sukegawa, Tadakatsu Ohkubo, Seiji Mitani
Sci. Technol. Adv. Mater. 25, 2378684(2024)Taylor and Francis

Broadband dielectric spectroscopy studies of Co₃O₄ and Co₂TiO₄ two-phase spinel composites

S Nayak, J Dhillon, AM Padhan, SK Deshpande, S Thota
Physica B: Condensed Matter 695, 416560(2024) Elsevier

Magnetic exchange interactions and non-Debye relaxation in spin-3/2 frustrated Kagomé magnet Co₃V₂O₈

H Singh, M Skoulatos, DC Joshi, P Pramanik, M Roy-Chowdhury, S Ghosh, SK Jena, JK Dey, S Thota
Journal of Physics: Condensed Matter 36 315601 (2024)IOP

Charge-ordering breakdown dynamics and ferromagnetic resonance studies of B-site Cu diluted Pr_1-xSr_xMnO₃

A Bordoloi, S K Jena, P Tiwari, A Datta, B Weise, R Medwal, R S Rawat, S Thota
Journal of Physics: Condensed Matter 36 295802 (2024)IOP

Magnetic structure and field-induced transitions in the triangular spin-1 antiferromagnet NiNb2O₆: Observation of a triple poin

R. Maruthi, S. Singh, S. Ghosh, M. S. Seehra, B. Weise, W. Prellier, S. Thota
Phys. Rev. B 108, 224430,(2023)APS

Phonon scattering and magnetic manifold switching in (GdSm)CrO₃

S. Das, R. K. Dokala, B. Weise, P. K. Mishra, R. Medwal, R. S. Rawat, and S. Thota
Phys. Rev. Materials 7, 084410,(2023)APS

Unraveling the nature of ferrimagnetism and associated exchange interactions in distorted honeycomb Ni₄Nb₂O₉

S. Thota, M. S. Seehra, M. R. Chowdhury, H. Singh, S. Ghosh, S. K. Jena, P. Pramanik, T. Sarkar, R. S. Rawat, R. Medwal, and B. Weise
Phys. Rev. B 106, 134418,(2022)APS

Reentrant canonical spin-glass dynamics and tunable field-induced transitions in (GeMn)Co2O₄ Kagomé lattice

A. D. Singha, P. Pramanik, D.C. Joshi, S. Ghosh, S. K. Jena, P. Tiwari, T. Sarkar, S. Thota
Journal of Physics: Condensed Matter 36 075802, (2023)IOP

Optimized analysis of the AC magnetic susceptibility data in several spin-glass systems using the Vogel–Fulcher and Power laws

Mouli Roy-Chowdhury,Mohindar S. Seehra and Subhash Thota
AIP Advances 13, 115020 (2023)AIP

Irreversible metamagnetic transitions in Yb³⁺ distorted tetragonal Pr_0.45Sr_0.55MnO₃

R K Dokala, S Das, G Jangam, P K Mishra and S Thota
Journal of Physics D: Applied Physics 57, 045001,(2023)IOP

Spin-liquid state with precursor ferromagnetic clusters interacting antiferromagnetically in frustrated glassy tetragonal spinel Zn_0.8Cu_0.2FeMnO₄

Suchit Kumar Jena, Mohindar Seehra, Tapati Sarkar, Manfred Reehuis, Andreas Hoser, Bruno Weise, Subhash Thota
Journal of Physics: Condensed Matter 35 375802, (2023)IOP

Strong correlation between structure and magnetic ordering in tetragonally distorted off-stoichiometric spinels Mn_1.15Co_1.85O₄ and Mn_1.17Co_1.60Cu_0.23O₄

P. Pramanik, M. Reehuis, M. Tovar, A. Hoser, J.-U. Hoffmann, Y. S. Chen, J. G. Lin, B. Weise, A. Waske, and S. Thota
Phys. Rev. Materials 6, 034407,(2022)APS

Probing the incoherent admixture of low and high-spin states of Co in (LaPr)CoO₃ Perovskite: focus on structural phase transitions

Priyanka Tiwari, Arpita Deb Singha, Soham Avinash Atkar, Arjit Datta, Subhash Thota
Journal of Physics: Condensed Matter 35 375402, (2023)IOP

The role of Zn and Ru substitution on the structural, magnetic and dielectric properties of ferrite cuprospinels

Mouli Roy-Chowdhury, Suchit Kumar Jena, Vedant Pramod Khadse, Deep Chandra Joshi, Subhash Thota
Journal of Physics D: Applied Physics 56 355304, (2023)IOP

Correlated barrier charge hopping and non-Debye relaxation in columbite MnNb₂O₆

Maruthi R, SK Deshpande, V Deshmukh, K Singh, S Thota
Journal of Physics D: Applied Physics 56 025501, (2023)IOP

Slow spin dynamics of cluster-glass spinel Zn(Fe_1-xRu_x)₂O₄: role of Jahn-Teller active spin-1/2 Cu²⁺ ions at B-sites

Suchit Kumar Jena, Tapati Sarkar, Mouli Roy Chowdhury, Bruno Weise, Yajun Qi and Subhash Thota
Journal of Physics: Condensed Matter 34, 405801 (2022)IOP

Magnetic ordering in Ce Substituted Zirconite Nanostructures: Focus on Tunable Energy Bandgap and Local-atomic Environment

Ravi Kiran Dokala, Shaona Das, Pankaj Kumar Mishra, Subhash Thota
Physica Scripta, 98, 095946 (2023)IOP

Determination of the tricritical point, H–T phase diagram and exchange interactions in the antiferromagnet MnTa₂O₆

Maruthi R, Mohindar S Seehra, Sayandeep Ghosh, Rohit Medwal, Rajdeep S Rawat, Bruno Weise, Eun Sang Choi and Subhash Thota
Journal of Physics: Condensed Matter 34, 155801 (2022)IOP

Antiferromagnetic short-range order and cluster spin-glass state in diluted spinel ZnTiCoO₄

Mouli Roy Chowdhury, Mohindar S Seehra, Prativa Pramanik, Sayandeep Ghosh, Tapati Sarkar, Bruno Weise and Subhash Thota
Journal of Physics: Condensed Matter 34, 275803 (2022)IOP

Anisotropic Ferromagnetic Organic Nanoflowers

Sajitha Sasidharan, Sayandeep Ghosh, Rishi Sreedhar, Kalpana Kumari, Subhash Thota, Vibin Ramakrishnan
Journal of Physical Chemistry C 126, (19) 8511 (2022)ACS

Substrate orientation dependent characteristics of half-metallic and metallic superlattices [La_0.7Sr_0.3MnO₃/LaNiO₃]₁₀

Shaona Das, Ranganadha Gopalarao Tanguturi, Sayandeep Ghosh, Ravi Kiran Dokala, Rohit Medwal, Surbhi Gupta, Zhuo Yan, Yan Qi, Rajdeep Singh Rawat, Subhash Thota
Journal of Applied Physics 131, 125305 (2022)AIP

Effect of Ce substitution on the local magnetic ordering and phonon instabilities in antiferromagnetic DyCrO₃ perovskites

S. Das, R. K. Dokala, B. Weise, R. Medwal, R. S. Rawat, P. K. Mishra and S. Thota
Journal of Physics: Condensed Matter 34, 345803 (2022)IOP

Magnetic ground state and exchange interactions in the Ising chain ferromagnet CoNb₂O₆

Subhash Thota, Sayandeep Ghosh, Maruthi R, Deep C. Joshi, Rohit Medwal, Rajdeep S. Rawat, and Mohindar S. Seehra
Phys. Rev. B 103, 064415,(2021)APS

Lattice dynamics and magnetic exchange interactions in GeCo₂O₄: A spinel with S=1/2 pyrochlore lattice

P. Pramanik, S. Singh, M. R. Chowdhury, S. Ghosh, V. Sathe, K. M. Rabe, D. Vanderbilt, M. S. Seehra, and S. Thota
Phys. Rev. B 104, 014433,(2021)APS

Magnetization Reversal, Field-Induced Transitions and H-T Phase Diagram of Y_1-xCe_xCrO₃

Ravi Kiran Dokala, Shaona Das, Bruno Weise, Rohit Medwal, Rajdeep Singh Rawat, Subhash Thota
Journal of Physics: Condensed Matter 34, 065801 (2021)IOP

Tailoring the electronic structure and magnetic properties of pyrochlore Co₂Ti_{1- x}Ge_xO₄: a GGA+ U ab initio study

S Ghosh, S Singh, D Das, S Ghosh, PK Mishra, S Thota
Journal of Physics: Condensed Matter 33 (14), 145504 (2021)IOP

Magnetic field-temperature phase diagram, exchange constants and specific heat exponents of the antiferromagnet MnNb₂O₆

Maruthi R, S Ghosh, M. S. Seehra, D. C. Joshi, M. R. Chowdhury, R. Medwal, R. S. Rawat, B. Weise, S Thota
Journal of Physics: Condensed Matter 33, 345801 (2021)IOP

Dynamical response of localized electron hopping and dipole relaxation in Cu_1-xZn_xFe₂O₄ magnetoceramics

Suchit Kumar Jena, Deep Chandra Joshi, Sayandeep Ghosh, Kiran Dasari, Subhash Thota
Journal of Physics. D: Applied Physics 54, 425303 (2021)IOP

The role of epitaxial strain on the electronic and magnetic structure of La_0.7Sr_0.3MnO₃/LaCoO₃ bilayers

S. Das, S. Ghosh, R. G. Tanguturi, R. Medwal, S. Gupta, R. K. Dokala, R.S. Rawat, S. Das, and S. Thota
AIP Advances 11, 125115 (2021)AIP-Editorial Pick Article

Neutron diffraction evidence for local spin canting, weak Jahn–Teller distortion, and magnetic compensation in Ti_1-xMn_xCo₂O₄ spinel

P. Pramanik, D.C. Joshi, M. Reehuis, A. Hoser, J-U Hoffmann, R. S. Manna, T. Sarkar and S. Thota
Journal of Physics: Condensed Matter 32, 245801,(2020)IOP

Cluster Glass Behavior in Orthorhombic SmFeO₃ Perovskite:Interplay Between Spin Ordering and Lattice Dynamics

M. Kamal Warshi, Anil Kumar, Aanchal Sati, S. Thota, K. Mukherjee, Archna Sagdeo, and Pankaj R. Sagdeo
Chem. Mater. 32, 1250,(2020)ACS

Identification of a Fe-Dependent Optical Mode in CuAl_1-xFe_xO₂

M. A. Aziziha, S. Akbarshahi, S. Pittala, S. Ghosh, R. Sooriyagoda, A. H. Romero, S. Thota, A. D. Bristow, M. S. Seehra, M. B. Johnson
J. Phys. Chem. C, 125, 6, 3577 (2021) ACS

Electronic Structure and Magnetic Exchange Interactions in Zn diluted CuFe₂O₄ Magnetoceramics

Suchit Kumar Jena, Deep Chandra Joshi, Zhuo Yan, Yajun Qi, Sayandeep Ghosh, and Subhash Thota
Journal of Applied Physics, 128, 073908 (2020)AIP

Elastic Strain control of Electronic Structure, and Magnetic Properties of [Pr_1-xCa_xMnO₃/SrTiO₃]₁₅ Superlattices

R. K. Dokala, S. Das, D. C. Joshi, S. Ghosh, Z. Yan, Y. Qi, S. Das and S. Thota
Journal of Applied Physics, 127, 175303,(2020)AIP

Antiferromagnetism, spin-glass State, H-T phase diagram, and inverse magneto-caloric effect in Co₂RuO₄

Sayandeep Ghosh, Deep Chandra Joshi, Prativa Pramanik, Suchit K Jena, Suresh Pittala, Tapati Sarkar, Mohindar S Seehra and Subhash Thota
J. Phys.: Condens. Matter 32, 485806,(2020)IOP

Low-temperature anomalous spin correlations and Kondo effect in ferromagnetic SrRuO₃/LaNiO₃/La_0.7Sr_0.3MnO₃ trilayers

Sayandeep Ghosh, R. G. Tanguturi, P. Pramanik, D. C. Joshi, P. K. Mishra, S. Das, and S. Thota
Physical Review B. 99, 115135,(2019)APS

Effects of radiative local heating on metal solidification during selective laser melting for additive manufacturing

Beom Seok Kim, Namkyu Lee, Subhash Thota, Thomas Gemming, and Hyung Hee Cho
Applied Surface Science 496, 143594,(2019)ScienceDirect

Phonon Dynamics in Anisotropic Dilute CuAl_1–xFe_xO₂ Delafossite Alloys by a Weighted Dynamical Matrix Approach

M. Aziziha, S. Akbarshahi, S. Ghosh, P. Pramanik, J. P. Lewis, A. H. Romero, S. Thota, M. S. Seehra, M. B. Johnson
Journal of Physical Chemistry C, 123, 50, 30604 (2019)ACS

Magnetic ground state, field-induced transitions, electronic structure, and optical band gap of the frustrated antiferromagnet GeCo₂O₄

P. Pramanik, S. Ghosh, P. Yanda, D. C. Joshi, S. Pittala, A. Sundaresan, P. K. Mishra, S. Thota, and M. S. Seehra
Physical Review B. 99, 134422,(2019)APS

Cationic distribution, exchange interactions, and relaxation dynamics in Zn-diluted MnCo₂O₄ nanostructures

P. Pramanik, D. C. Joshi, N. Tiwari, T. Sarkar, S. Pittala, O.O. Salman, M.-M. Manga, and S. Thota
Journal of Applied Physics 125, 124302(2019)AIP

Thermal hysteresis and vibrational excitations in NiO containing NaNbO₃

R. T. George, T. A. Dar, D. C. Joshi, V. Sathe, A. K. Rathore and S. Thota
Journal of Physics D: Applied Physics 52, 115301(2019)IOP

Role of phase transition in the dielectric and magnetic properties of Na containing NiO

D. C. Joshi, P. Pramanik, M. K. Warshi, S.Ghosh, A. Meher, K.Dasari, S.Thota
Journal of Physics and Chemistry of Solids 130, 154 (2019)Elsevier

Magnetic exchange interactions and band gap bowing in Ni_xMg_1-xO: A GGA + U density functional study

Sayandeep Ghosh, Suchit Kumar Jena, Pankaj Kumar Mishra, Mohindar S. Seehra, and Subhash Thota
Journal of Applied Physics 126, 233904 (2019)AIP

Role of dilution on the electronic structure and magnetic ordering of spinel cobaltites

Sayandeep Ghosh, Sobhit Singh, Deep Chandra Joshi, Prativa Pramanik, Subhradip Ghosh, Pankaj Kumar Mishra, and Subhash Thota
Physical Review B 98, 235119 (2018)APS

Interfacial magnetism in LaSrMnO₃/LaNiO₃ ultrathin superlattices

Sujit Das, Sayandeep Ghosh, Prativa Pramanik, Deep Chandra Joshi, and Subhash Thota
Journal of Physics D: Applied Physics 51, 325001 (2018)IOP

Structural and magnetic properties of La_0.7Sr_0.3MnO₃/LaCoO₃ heterostructures

S. Thota, K. Roychowdhury, V. Thakare, S. C. Ganguli, Z. H. Chen, E. J. Guo and S. Das
Applied Physics Letters 113, 122405 (2018)AIP

Cubic phase stability, optical and magnetic properties of Cu-stabilized zirconia nanocrystals

Prativa Pramanik, Sobhit Singh, Deep Chandra Joshi, Ayan Mallick, Kelly Pisane, Aldo H Romero, Subhash Thota and M S Seehra
Journal of Physics D: Applied Physics 51, 225304 (2018)IOP

Nature of magnetic ordering in nanocomposites of Zn_1-pNi_pO and NiO

D. C. Joshi, P. Pramanik, R. T. George, T. Sarkar, and S. Thota
Physica E: Low-dimensional Systems and Nanostructures 103,46–52(2018)Elsevier

Effect of NiO substitution on the structural and dielectric behaviour of NaNbO₃

R. T. George, D. C. Joshi, S. Nayak, N. Tiwari, R. N. Chauhan, P. Pramanik, T. A. Dar, S. Ghosh, S. Thota
Journal of Applied Physics 123 (5), 054101 (2018)AIP

Neutron diffraction study of the inverse spinels Co₂TiO₄ and Co₂SnO₄

S. Thota, M. Reehuis, A. Maljuk, et al.
Physical Review B 96(14), 144104 (2017) APS

Modulation of Peptide Based Nano-Assemblies with Electric and Magnetic Fields

G. Pandey, J. Saikia, S. Sasidharan, D. C. Joshi, S. Thota, H. B. Nemade, N. Chaudhary & V. Ramakrishnan
Nature Scientific Reports, 7, 2726 (2017)

Magnetic phase diagram of Co(Cr_1-xAl_x)₂O₄

R. Padam, T. Sarkar, R. Mathieu, S. Thota and D. Pal
Journal of Applied Physics 122(7),073908,(2017) AIP

Finite-size-scaling and Exchange-Bias in SrRuO₃/LaNiO₃/SrRuO₃ Trilayers

S. Thota, S. Ghosh, S. Nayak, D. C. Joshi, P. Pramanik, K. Roychowdhury, and S. Das
Journal of Applied Physics 122, 124304,(2017) AIP

Dielectric Properties of (1-x)KNbO₃–xNiO Two-Phase Composites

R. Soni, R George, D C Joshi, S Nayak, P Pramanik, P Suresh, T A Dar and S Thota
Journal of Physics D. Applied Physics, 50, 415305 (2017) IOP

Structural and Dielectric Properties of the Fluorite-Type La_xCe_{1- x}O_2-d Ceramics

K. Singh, K. Kumar, S. Nayak, D.C. Joshi, M.M. Alom, S. Thota, A Chowdhury
Journal of Physics D. Applied Physics, 50, 495601(2017) IOP

Size-dependent structural, magnetic, and optical properties of MnCo2O4 nanocrystallites

S. Singh, P. Pramanik, S. Sangaraju, A. Mallick, L. Giebeler, S. Thota
Journal of Applied Physics 121 (19), 194304 (2017)AIP

Effects of Cu doping on the electronic structure and magnetic properties of MnCo₂O₄ nanostructures

P. Pramanik, S. Thota, S. Singh, D. C Joshi, B. Weise, A. Waske, M. S Seehra
Journal of Physics: Condensed Matter 29 (42), 425803 (2017)IOP

Magnetic exchange interactions and dielectric studies of Zn_1–xNi_xO–NiO composites

D.C. Joshi, P. Pramanik, S. Nayak, K. Dasari, R.J. Choudhary, S.Thota
Journal of Physics D. Applied Physics, 50, 325002 (2017) IOP

Spectroscopic studies of Co₂TiO₄ and Co₃O₄ two-phase composites

S. Nayak, K. Dasari, D. C. Joshi, P. Pramanik, R. Palai, V. Sathe, R. N. Chauhan, N. Tiwari and S. Thota
Physica Status Solidi B, 253 (11), 2270 (2016) Wiley

Reentrant spin-glass behavior and bipolar exchange-bias effect in “Sn” substituted cobalt-orthotitanate

S. Nayak, D. C. Joshi, M. Krautz, A. Waske, J. Eckert and S. Thota
Journal of Applied Physics, 119, 043901 (2016) AIP

Low-temperature anomalous magnetic behavior of Co₂TiO₄ and Co₂SnO₄

S. Nayak, K. Dasari,D. C. Joshi,P. Pramanik,R. Palai,A. Waske,R. N. Chauhan, N. Tiwari,T. Sarkar,and S. Thota
Journal of Applied Physics 120, 163905 (2016) AIP

Peculiarities of the temperature dependence of electron spin resonance and Raman studies of Zn_1-xNi_xO/NiO two-phase nanocomposites

D. C. Joshi, S. Nayak, A. Kumar, A. Mohanta, D. Pamu and S. Thota
Journal of Applied Physics, 119, 074303 (2016) AIP

Magnetic compensation, field-dependent magnetization reversal, and complex magnetic ordering in Co₂TiO₄

S. Nayak, S. Thota, D. C. Joshi, M. Krautz, A. Waske, A. Behler, J. Eckert, T. Sarkar, M. S. Andersson, R. Mathieu, V. Narang, and M. S. Seehra
Physical Review B, 92, 214434 (2015) APS

Localized charge carrier transport properties of Zn_1-xNi_xO/NiO two-phase composites

D. C. Joshi, K. Dasari, S. Nayak, R. Palai, P. Suresh, S. Thota
Journal of Electronic Materials, 45, 2059 (2016) Springer

The X-ray photoelectron spectroscopy and high-temperature structural studies of Zn_1-xNi_xO/NiO two-phase composites

D. C. Joshi, S. Nayak, P. Suresh, K. S. Suresh, B.V.M. Kumar, S. Thota
Physica Status Solidi (b) ,67, 523 (2015)

On the nature of magnetic state in the spinel Co₂SnO₄

S. Thota, V. Narang, S. Nayak, S. Sambasivam, B.C. Choi, T. Sarkar, M. S. Andersson, R. Mathieu, and M. S. Seehra
Journal of Physics.: Condensed Matter, 27, 166001 (2015) IOP

Addendum: Co-existence of ferrimagnetism and spin-glass state in the spinel Co₂SnO₄

S. Thota and M. S. Seehra
Journal of Appled Physics 118, 129901 (2015)

The ac-magnetic susceptibility and dielectric response of complex spin-ordering process in Mn₃O₄

S. Thota, K. Patyal, S. Nayak, Ch. Simon, J. Kumar and W. Prellier
Journal of Applied Physics 116, 103906 (2014)

The dielectric behavior of Zn_1-xNi_xO/NiO two-phase composites

D. C. Joshi, S. Thota, S. Nayak. D. D. Harish, D. Pamu, Md. Qureshi
Journal of Physics D: Applied Physics 47, 435305 (2014)

Dielectric Response and AC-conductivity Studies of Gd₂O₃-Contained K_0.5Na_0.5NbO₃ Piezoelectric Ceramics

M. Peddigari, S. Thota, D. Pamu
IEEE Transactions on Dielectrics and Electrical Insulation, 22, 3668 (2015)

Dielectric and ac-conductivity studies of Dy₂O₃ doped KNaNbO₃ ceramics

M. Peddigari, S. Thota, D. Pamu
AIP Advances 4(8), 087113 (2014)

Ion induced secondary electron emission, Optical and hydration resistance behavior of MgO, Mg-Mo-O and Mg-Ce-O thin films

A. Kumar, S. Thota, D. Deva and J. Kumar
Thin Solid Films 556, 260 (2014)

Structural and Dielectric studies of Co doped MgTiO₃ thin-films fabricated by RF magnetron sputtering

T. S. Kumar, P. Gogoi, S. Thota, D. Pamu
AIP Advances 4, 067142 (2014)

Size-dependent shifts of the Neel temperature and optical band-gap in NiO nanoparticles

S. Thota, J. H. Shim, and M. S. Seehra
Journal of Applied Physics, 114, 214307, (2013) Letters

Co-existence of ferrimagnetism and spin-glass state in the spinel Co₂SnO₄

S. Thota, and M. S. Seehra
Journal of Applied Physics, 113, 203905,(2013)

Memory Effects and Relaxation Dynamics of MnCo₂O₄ Nanocrystallites

S. Thota, S. K. Das, A. Kumar, S. Sangaraju and B. C. Choi
IEEE Transactions on Magnetics, 49, 1020, (2013)

Formation mechanism, Optical and Magneto-dielectric studies of new cubic spinel MgMnO₃

S. Thota, K. Singh, B. Prasad, J. Kumar, Ch. Simon and W. Prellier
AIP Advances 02, 032140 (2012)

Synthesis, Structure and Magnetic behaviour of Nanoparticles of Cubic ZnMnO₃

J. Rall, S. Thota, J. Kumar, and M. S. Seehra
Applied Physics Letters 100, 252407 (2012)

Synthesis and Optical Characterization of Mg_1-xNi_xO Nanostructures

N. Budiredla, A. Kumar, S. Thota, and J. Kumar
Nanomaterials 10, 5402 (2012)

On the derivation of magnetocaloric properties in ferrimagnetic spinel-Mn₃O₄

S. Thota, F. Guillou, V. Hardy, A. Wahl, W. Prellier and J. Kumar
Journal of Applied Physics, 109, 053902, (2011)

Magnetic transitions in Mn₃O₄ and an anomaly at 38 K in magnetization and specific heat

F. Guillou, S. Thota, W. Preellier, J. Kumar and V. Hardy
Physics Review B, 83, 094423, (2011)

Magnetic frustration and short-range ordering in cubic defect spinel MgMnO₃

M. S. Seehra, V. Singh and S. Thota
Journal of Applied Physics, 110, 113907, (2011) Letters

Anisotropic magnetocaloric efect in all-ferromagnetic (La_0.7Sr_0.3MnO₃/SrRuO₃) superlattices

S. Thota, Q. Zhang,F. Guillou, U. Luders, W. Preellier, A. Wahl and P. Padhan
Applied Physics Letters, 97, 112506 [1-3], (2010)

Synthesis and magnetic properties of nanocrystals of cubic defect spinel MgMnO₃

M.S. Seehra, V. Singh, S. Thota, B. Prasad and J. Kumar
Applied Physics Letters, 97, 112507 [1-3], (2010)

Magnetocaloric effect and improved relative cooling power in (La_0.7Sr_0.3MnO₃/SrRuO₃) superlattices

Q. Zhang, S. Thota, ,F. Guillou, A. Wahl, P. Padhan, V. Hardy and W. Preellier
J. Phys: Conden. Matter, 23, 052201, (2010) Fast track Communication Citations - 10

Optical, electrical and magnetic properties of Co₃O₄ nanocrystallites obtained by thermal decomposition of sol–gel derived oxalates

S. Thota, A. Kumar, J. Kumar
Materials Science and Engineering: B, 164, 30-37 (2009)

Ferromagnetic ordering in PLD grown Zn_1-xNi_xO/ZnO bilayer thin films

S. Thota, L.M. Kukreja and J. Kumar
Thin Solid Films, 517, 750-754(2008)

A comparative study of magnetic properties of bulk and nanocrystalline Co₃O₄

P.Dutta, M.S.Seehra, S.Thota and J.Kumar
Journal of Physics Condesed Matter, 20, 015218[1-8](2008) Citations - 102

Sol-gel synthesis and behaviour of Ni containing ZnO nano-particles

S.Thota and J.Kumar
Journal of Nanoscience and Nanotechnology, 8, 4073-80 (2008)

Preparation, microstructure and optical absorption of NiO thin films

A.K. Srivastava, S. Thota and J. Kumar
Journal of Nanoscience and Nanotechnology, 8, 4111-15 (2008)

Sol- gel synthesis and anomalous magnetic properties of NiO nano-particles

S. Thota and J. Kumar
Journal of Physics and Chemistry of Solids, 68, 1951-64 (2007)

On the sol-gel synthesis and thermal, structural, and magnetic studies of transition metal(Ni, Co, Mn) containing ZnO powders

S. Thota, T. Dutta and J. Kumar
Journal of Physics Condensed Matter, 18, 2473-86 (2006)

Formation and magnetic behaviour of manganese oxide nanoparticles

S. Thota, B. Prasad and J. Kumar
Materials Science and Engineering: B, 167, 153-160 (2010)

Sol-gel synthesis of highly luminesent magnesium oxide nanocrystals

A. Kumar, S. Thota, S. Varma and J. Kumar
Journal of Luminescence, 131, 640 (2010)

Sol-gel synthesis and optical behavior of Mg-Ce-O nanocrystals

A. Kumar, S. Thota, S. Sivakumar, S. Priya and J. Kumar
J. Sol Gel. Sci. Technol. 67, 1047 (2013)

Research work presented at International and National conferences

Epitaxial conductive SrMoO₃(001) thin films grown in pure Ar atmosphere using sputtering technique

Mouli Roy-Chowdhury, Cong He, Ke Tang, Hiroki Koizumi, Zhenchao Wen, Subhash Thota, Hiroaki Sukegawa, and Seiji Mitani
The 71st Japan Society of Applied Physics (JSAP) Spring Meeting 2024, March 22-25, 2024, Setagaya Campus, Tokyo City University, Setagaya-ku, Tokyo-158-8557, Japan

Growth of epitaxial conductive SrMoO₃ thin film in pure Ar atmosphere using sputtering technique

Mouli Roy-Chowdhury, Cong He, Ke Tang, Hiroki Koizumi, Zhenchao Wen, Subhash Thota, Hiroaki Sukegawa, and Seiji Mitani
3rd Center for Magnetic and Spintronic Materials (CMSM) Interaction Corridor, 30 Jan 2024, NIMS Tsukuba, Ibaraki 305-0047, Japan

Fundamentals of Magnetic Materials and their Applications

S. Thota
Three Days Workshop on on Engineering materials: Design and simulation (ICETFM-2022), 15-17 Feb, 2023

Quantum Aspects in Transverse-field Ising Chain Quasi one-Dimensional Columbites

S. Thota
7th International Conference on Nanoscience and Nanotechnology – ICONN 2023 (Virtual Conference), SRM Institute of Science and Technology, 27-29 March 2023, Chennai, India

Magnetic Properties of Diluted Jahn-Teller Active Cuprospinels

Mouli Roy-Chowdhury, Suchit Kumar Jena, Subhash Thota
25^th International Conference on the Jahn-Teller EffectVibronic Coupling and Jahn-Teller Effects in Polyatomic SystemsNovel Achievements and Applications, 14-18 May 2023, Department of Chemistry, York University, Ontario, Canada

Spin-liquid State in Magnetically Diluted Jahn-Teller Active Spinel Pyrochlore ZnFe₂O₄

Suchit Kumar Jena and Subhash Thota
The 68th Annual Conference on Magnetism and Magnetic Materials, Dallas, USA, October 30 – November 3, 2023, AIP Publishing and the IEEE Magnetics Society,

Understanding the Role of Structural Distortion on the Magnetic Behavior of Cobalt Vanadate Kagomé System

Harshita Singh, Suchit Kumar Jena, and Subhash Thota
25^th International Conference on the Jahn-Teller EffectVibronic Coupling and Jahn-Teller Effects in Polyatomic SystemsNovel Achievements and Applications, 14-18 May 2023, Department of Chemistry, York University, Ontario, Canada

Frustration Induced Short-range Magnetic Correlations in Spinel ZnTiCoO₄

Mouli Roy-Chowdhury, Harshita Singh, Prativa Pramanik, Sayandeep Ghosh and Subhash Thota
5th Indian Materials conclave (IIT-BHU, Varanasi) Materials Research Society of India (MRSI), December 12-15, 2023

Charge-Ordering Characteristics of Calcium Manganite:(CaSr)MnO3

P. Tiwari, V. P. Khadse, A. Bhardwaj, S. A. Atkar, S. Thota
International Conference on Magnetic Materials and Applications (ICMAGMA-2023)From 04 - 06 December 2023, Hyderabad 2023

A Quantitative Study on the Magnetic and Phonon Dynamics of Ni₄Nb₂O₉

Harshita Singh, Sobhit Kumar Singh, Sayandeep Ghosh and Subhash Thota
5th Indian Materials conclave (IIT-BHU, Varanasi) Materials Research Society of India (MRSI), December 12-15, 2023

On the Mixed Ground State Configurations of Co in (LaPr)CoO₃ Perovskites₄

Priyanka Tiwari and Subhash Thota
5th Indian Materials conclave (IIT-BHU, Varanasi) Materials Research Society of India (MRSI), December 12-15, 2023

Electric Dipole Relaxation in Ferrimagnetic Spinel MnTiCoFeO₄₄

Arpita Deb Singha and Subhash Thota
5th Indian Materials conclave (IIT-BHU, Varanasi) Materials Research Society of India (MRSI), December 12-15, 2023

Altered Magnetic Order Parameters and Optical Energy Bandgap in Mn Substituted Nickel Chromate Spinels₄

A. Datta, M. R. Chowdhury, A. D. Singha, H. Singh, P. Tiwari, S. Thota
5th Indian Materials conclave (IIT-BHU, Varanasi) Materials Research Society of India (MRSI), December 12-15, 2023

Correlation between the Crystal Structure and the Intermediate Spin-states of Pr substituted LaCoO₃ Nanostructures

P. Tiwari, R.K Dokala and S. Thota
Perovskite Society of India Meet (PSIM-2023), IIT Roorkee, March 01-03, 2023

Field and path induced magnetization switching and spin reorientation phenomenon in Ce substituted SmCrO₃

S. Das, R. K. Dokala, P. K. Mishra, and S. Thota
Perovskite Society of India Meet (PSIM-2023), IIT Roorkee, March 01-03, 2023

Evidence for the Field-Induced Spin-Flip Transitions in Ce substituted GdCrO₃

R K Dokala, S Das, P K Mishra and S. Thota
Perovskite Society of India Meet (PSIM-2023), IIT Roorkee, March 01-03, 2023

Magnetic Relaxation Dynamics of Frustrated Glassy Tetragonal Spinel Cu_0.2Zn_0.8FeMnO₄

S.K. Jena1,T. Sarkar, B. Weise and S. Thota
The 67th Annual Conference on Magnetism and Magnetic Materials, Minneapolis, MN, USA, October 31 – November 4, 2022, AIP Publishing and the IEEE Magnetics Society,

AC- conductivity and Dielectric Relaxation in Columbite MnNb₂O₆

Maruthi R, V. P. Khadse and S. Thota
The international conference on “Emergent Techniques and Functional Materials (ICETFM-2022), 12-14 July, 2022
National Institute of Technical Teachers Training and Research (NITTTR) Chandigarh

Field-Induced Magnetic Phase Transitions in Fe substituted Ferrimagnetic MnCo₂O₄ Spinel

A. D. Singha, H. Singh, M. R. Chowdhury, S. K. Jena, and S. Thota
Conference on Emergent phenomena in Quantum MATerials (E-QMAT) 12-14 October 2022,Department of Physics, IIT Roorkee

Tunable Charge Ordering Behavior in Praseodymium based Perovskites

A. Bordoloi, S. K. Jena, M.R. Chowdhury, and S. Thota
Conference on Emergent phenomena in Quantum MATerials (E-QMAT) 12-14 October 2022,Department of Physics, IIT Roorkee

Investigation of the Crystal Structure and Vibrational Excitations in Cu and Ru co-substituted ZnFe2O₄

V. P. Khadse, S. K. Jena, M. Roy Chowdhury and S. Thota
The international conference on “Emergent Techniques and Functional Materials (ICETFM-2022), 12-14 July, 2022

Melting and Breakdown of Charge-Ordered State in Al doped NdSrMnO₃ off-stoichiometric Perovskites

A. Bhardwaj, P. Tiwari, S. A. Atkar, and S. Thota
Conference on Emergent phenomena in Quantum MATerials (E-QMAT) 12-14 October 2022,Department of Physics, IIT Roorkee

Probing the Magnetic Field Induced Transitions in Mn substituted Pyrochlore Magnet GeCo₂O₄

A. D. Singha, H. Singh, S. K. Jena, M. R. Chowdhury and S. Thota
The international conference on “Emergent Techniques and Functional Materials (ICETFM-2022), 12-14 July, 2022

The role of B-site Mn substitution on Magnetic and Dielectric Properties of (LaNd)0.5CoO3 Perovskites

S. A. Atkar, P. Tiwari, A. Bhardwaj and S. Thota
Conference on Emergent phenomena in Quantum MATerials (E-QMAT) 12-14 October 2022,Department of Physics, IIT Roorkee

Structural and Magnetic Properties of Spin-3/2 Frustrated Kagomé Magnet Co₃V₂O₈

H. Singh, A. D. Singha, S. K. Jena, S. Ghosh, and S. Thota
The international conference on “Emergent Techniques and Functional Materials (ICETFM-2022), 12-14 July, 2022

Magnetic Exchange Interactions and H-T Phase diagram of Kagomé Heisenberg antiferromagnet Co₃V₂O₈

H. Singh, M. R. Chowdhury, S.K Jena, A.D. Singha and S. Thota
Conference on Emergent phenomena in Quantum MATerials (E-QMAT) 12-14 October 2022,Department of Physics, IIT Roorkee

Antiferromagnetic Spin-glass Properties of few Spinels: The Role of Dilution and Geometrical Frustration

Subhash Thota
IIT and NIMS Materials Science Workshop December 6-9, 2021

Coexistence of Ferrimagnetic Ordering and Spin-glass state in Spinel Zn(Fe_1-xRu_x)₂O₄: Role of Jahn-Teller Active Spin-1/2 Cu²⁺ ions at B-sites

Suchit Kumar Jena, Sayandeep Ghosh and Subhash Thota
Scientific Programme of National conference on Quantum Condensed Matter(QMAT - 2021)December 08 – 11, 2021
QMAT 2021

Phonon Dispersion in Anisotropic Dilute Alloys by Weighted Dynamical-Matrix Approach

Mina Aziziha, Saeed Akbarshahi, Sayandeep Ghosh, Prativa Pramanik, James Patrick Lewis, Aldo H Romero, Suresh Pittala, Subhash Thota, Mohindar S Seehra, and Matthew Bruce Johnson
APS March Meeting 2020, Volume 65, Number 1, Session P63: Defects: Structure and Strain 1, 2:30 PM–5:18 PM, Wednesday, March 4, 2020, Room: Mile High Ballroom 4D, Denver, Colorado, USA
APS March Meeting 2020

Electronic Structure of the Glassy Antiferromagnetic Spinel ZnTiCoO₄: A DFT+U Approach

Mouli Roy Chowdhury, Sayandeep Ghosh, Sobhit Singh, Subhradip Ghosh, Mohindar S Seehra and Subhash Thota
Scientific Programme of National conference on Quantum Condensed Matter(QMAT - 2021)December 08 – 11, 2021
QMAT 2021

Structural and Magnetization Studies of Cu, Mn co-doped Franklinite

S. K. Jena, A. K. Hota, S. Ghosh, M. R. Chowdhury, Maruthi R, S. Thota
Conference on Condensed Matter Physics (CCMP) 2021, Physical Research Laboratory, 16-18th August, 2021
CCMP-2021

Crystal Structural and Micro Raman Studies of Mg_1-xNi_xO Solid Solutions

S. K. Jena, S. Singh, S. Ghosh, A. Keelu, P. Pramanik and S. Thota
UGC-SAP (DRS II) Sponsored SECOND NATIONAL CONFERENCE ON HARD AND SOFT CONDENSED MATTER PHYSICS, (NCHSCMP-2019), March 4-6,2019, Tezpur, Assam, India

Negative magnetization and field induced transitions in Y_1-xCe_xCrO₃

R. K. Dokala, S. Das and S. Thota
Scientific Programme of National conference on Quantum Condensed Matter(QMAT - 2021)December 08 – 11, 2021
QMAT 2021

Magnetic properties of Y_1-xCe_xCrO₄ nanocrystals

R. K. Dokala, S. Das and S. Thota
MRSI-AGM Materails Conclave (MRSI-AGM), IIT Madras, 20-23 December, 2021
MRSI-AGM-2021

EPR and Magnetic properties of the antiferromagnet MnNb₂O₆

Maruthi R and S. Thota
Conference on Condensed Matter Physics (CCMP) 2021, Physical Research Laboratory, 16-18th August, 2021
CCMP-2021

Structural and Vibrational Excitations in Dy_1-xCe_xCrO₃ Solid solutions

S. Das, R. K. Dokala and S. Thota
MRSI-AGM Materails Conclave (MRSI-AGM), IIT Madras, 20-23 December, 2021
MRSI-AGM-2021

Altered Antiferromagnetic State and Exchange Bias of Bulk Co₃O₄ Granular Matrix Dispersed in Nonmagnetic CeO₂

S. Singh, P. Pramanik, D. C. Joshi and S. Thota
Research Conclave-2019, 14-17 March 2019, IIT Guwahati, India

Electron Magnetic Resonance of Mangano-Columbite MnNb₂O₆

Maruthi R, R. Medwal, R. Singh and S. Thota
MRSI-AGM Materails Conclave (MRSI-AGM), IIT Madras, 20-23 December, 2021
MRSI-AGM-2021

Tunable Spin-reorientation Transitions in Canted Antiferromagnet Dy_1-xCe_xCrO₃

Shaona Das, Ravi Kiran Dokala and Subhash Thota
Scientific Programme of National conference on Quantum Condensed Matter(QMAT - 2021)December 08 – 11, 2021
QMAT 2021

Compositional dependence of Vibrational Excitations in Fe substituted MnCo₂O₄ Ferrimagnetic Spinels

S. Singh, P. Pramanik, S. K. Jena, B. Yadav, M. Sehrawat and S. Thota
UGC-SAP (DRS II) Sponsored SECOND NATIONAL CONFERENCE ON HARD AND SOFT CONDENSED MATTER PHYSICS, (NCHSCMP-2019), March 4-6,2019, Tezpur, Assam, India

Evidence for Field Induced Phase Transitions and Enhanced Long-range Ordering in Fe doped MnCo₂O₄

B. Yadav, S. Ghosh, M. Sehrawat, S. Singh, P. Pramanik, S.K. Jena, D.C. Joshi and S. Thota
Research Conclave-2019, 14-17 March 2019, IIT Guwahati, India

Magnetic Properties of Spin Ising Chain Manganocolumbite MnNb₂O₆

Ayush Vardhan Singh, Prativa Pramanik, Shalini Kushwaha, Sayandeep Ghosh, Maruthi Ramachandraiah, Subhash Thota
National Conference on Progresses in Material Science Research (PMSR-2020),February 4-6, 2020, Dibrugarh University, India

High Temperature Magnetization Studies of Mixed Spinel Cu_1-xZn_xFe₂O₄

S. K. Jena, S. Ghosh, S. Kushwaha, S. Sharma, D.C. Joshi and S. Thota
National Conference on Progresses in Material Science Research (PMSR-2020),February 4-6, 2020, Dibrugarh University, India

Pulsed Laser Growth of [Pr_1-xCa_xMnO₃/SrTiO₃]₁₅ Superlattices

Ravi K. Dokala, Shaona Das, Sujt Das, Soumya R. Ratha, Maruthi R, Subhash Thota
National Conference on Progresses in Material Science Research (PMSR-2020),February 4-6, 2020, Dibrugarh University, India

Magnetic Exchange Bias and Spin-glass state in Cobaltorthoruthanate

S. Ghosh, A. V. Singh, S. Sharma, T. Sarkar, S. Thota
National Conference on Progresses in Material Science Research (PMSR-2020),February 4-6, 2020, Dibrugarh University, India

Structural, Morphological and Elemental Analysis of Manganocolumbite

Shalini Kushwaha, Suchit Kumar Jena, Ayush Vardhan Singh and Subhash Thota
National Conference on Progresses in Material Science Research (PMSR-2020),February 4-6, 2020, Dibrugarh University, India

Electronic Structure Studies of [La_0.7Sr_0.3MnO₃/LaAlO₃]₁₅ Superlattices

Shaona Das, Ravi Kiran Dokala, Sujt Das, Sayandeep Ghosh, Subhash Thota
National Conference on Progresses in Material Science Research (PMSR-2020),February 4-6, 2020, Dibrugarh University, India

Complex Magnetic Ordering in Ultrathin Oxide Superlattices and Nanostructures

S. Thota (Invited Talk)
International Conference on Nano-Structured Materials and Devices (ICNSMD-2018), University of Delhi, India

Crystal structure and Magnetic Properties of Germanium doped MnCo₂O₄₂

M. Sehrawat, B.Yadav, S.Ghosh, S.Singh,P.Pramanik,S.K.Jena, D.C.Joshi and S. Thota
Research Conclave-2019, 14-17 March 2019, IIT Guwahati, India

Finite-Size Effects and Semi-Spin-Glass Behavior of Few Complex Spinels

S. Thota (Invited Talk)
International Conference on Materials for Energy Applications (ICME-18) December 06-08, 2018. S.S. Jain Subodh P.G. College Jaipur,India

Vibrational Raman Excitations and Broadband Dielectric Spectroscopy of Mg doped NiO

S. Mohapatra, S. K. Jena, A. Keelu, S. Singh, P. Pramanik, D.C. Joshi and S. Thota
Research Conclave-2019, 14-17 March 2019, IIT Guwahati, India

Density Functional Theory Studies of Co-based Spinels

S. Ghosh, S. Singh, P.K. Mishra, S. Thota
International Conference on Systems and Processes in Physics, Chemistry and Biology (ICSPPCB- 2018), 1-3 March, 2018, Silchar, Assam, India

Finite-Size effects in the Optical and Magnetic Properties of MnCo₂O₄ Nanostructures

S. Singh, P.Pramanik, M. S. Seehra, and S. Thota
American Physical Society (APS) March 13–17, 2017, New Orleans, Louisiana (USA), Bulletin of the American Physical Society

Structural and ac-electrical transport of Anti-ferroelectric NaNbO3 and NiO composites

R.T. George, T.A. Dar, D.C. Joshi, S. Nayak, S. Thota
International Conference on Systems and Processes in Physics, Chemistry and Biology (ICSPPCB- 2018), 1-3 March, 2018, Silchar, Assam, India

Morphotropic Phase Boundary Engineering and Dielectric Excitations in NaNbO₃-MgMnO₃ Composites

A. Meher, A. Thakur, D.C. Joshi, P.Pramanik and S. Thota
Research Conclave-2018, 8-11 March 2018, IIT Guwahati, India

Synthesis, Structural and Magnetic Properties of Ni_1-xMg_xO Nanostructures

S. K. Jena, S. Mohapatra, S. Singh, P. Pramanik, D.C. Joshi and S. Thota
Research Conclave-2018, 14-17 March 2019, IIT Guwahati, India

High Temperature Dielectric Behavior of Spin-1/2 Frustrated Kagome Magnet Co₃V₂O₈

A. Thakur, P.Pramanik, D. C Joshi, A. Meher and S. Thota
Research Conclave-2018, 8-11 March 2018, IIT Guwahati, India

High frequency ac-electrical transport studies of ferroelectric KNaNbO3 and CuO composites

T.A. Dar, D.C. Joshi, S. Nayak, R.T. George, S. Ghosh , S. Thota
International Conference on Systems and Processes in Physics, Chemistry and Biology (ICSPPCB- 2018), 1-3 March, 2018, Silchar, Assam, India

Optical and Magnetization studies MnCo_2-pCu_pO₄ Ferrimagnetic Spinels

P.Pramanik, D. C. Joshi, and S. Thota
International Conference on Advanced Functional Materials (ICAFM 2017) 18-20, December, 2017, RGUKT, Basar, Nirmal-504107, Telangana State, India

Lead-free Ferroelectric KNbO₃-NiO Two-Phase Composite

R. Soni, R. George, DC Joshi, P. Pramanik, S. Nayak, S. Ghosh, and S. Thota
Research Conclave-2018, 17-20 March 2017, IIT Guwahati, India

Vibrational Excitations in Ferrimagnetic Spinel MnCo₂O₄

P. Pramanik, D. C. Joshi, S. Ghosh, T. A. Dar, R. T. George, and S. Thota
National Workshop on Fluorescence and Raman Spectroscopy December 17-21, 2017, IIT Guwahati-781039, India

Investigation of the Structural and Dielectric properties of Antiferromagnetic CoO containing Wurtzite ZnO

M. M. Alom, S. Ghosh, D. C. Joshi, S. Nayak, P. Pramanik and S. Thota/span>
Research Conclave-2017, 17-20 March 2017, IIT Guwahati, India

Dielectric Behavior of Lead-free Ferroelectric NaNbO3-NiO Two-Phase Composits

R. T. George, D. C Joshi, R. Soni, P. Pramanik, S. Nayak, and S. Thota/span>
Research Conclave-2017, 17-20 March 2017, IIT Guwahati, India

High Frequency Dielectric Studies of Sodium Doped Mott-Insulators

S. Biswas, D. C. Joshi, T. Nagendrababu, P. Pramanik, S. Ghosh, T. A. Dar and S. Thota
5^th International Conference on Advanced Nanomaterial and Nanotechnology (ICANN-2017),IIT Guwahati-781039, India

Raman Spectroscopic Studies of Piezoelectric Alkaline Niobate

R. T. George, S. Nayak, D. C. Joshi, S. Ghosh, T. A. Dar, and S. Thota
National Workshop on Fluorescence and Raman Spectroscopy December 17-21, 2017, IIT Guwahati-781039, India

High temperature Dielectric behavior of KNaNbO₃ and CuO composites

T. A. Dar, D. C. Joshi, R. T. George and S.Thota
5^th International Conference on Advanced Nanomaterial and Nanotechnology (ICANN-2017),IIT Guwahati-781039, India

The role of Na doping on the Antiferromagnetic ordering of NiO

D. C. Joshi, P.Pramanik, and S. Thota
International Conference on Advanced Functional Materials (ICAFM 2017) 18-20, December, 2017, RGUKT, Basar, Nirmal-504107, Telangana State, India

On the Vibrational Excitations in Ferroelectric KNbO₃ and Antiferromagnetic MgMnO₃ Composites

S. Nayak, R. Soni, R.T. George, T.A. Dar, D. C. Joshi, S.Thota
5^th International Conference on Advanced Nanomaterial and Nanotechnology (ICANN-2017),IIT Guwahati-781039, India

Structural and Micro-Raman studies of Ferroelectric KNaNbO₃ and CuO composites

T. A. Dar, D. C. Joshi, S. Nayak, R. T. George, S. Ghosh, and S. Thota
National Workshop on Fluorescence and Raman Spectroscopy December 17-21, 2017, IIT Guwahati-781039, India

Structural and Magnetic properties of Al doped Cobalt Orthotitanate

S. Ghosh, S. Nayak, P. K. Mishra and S. Thota
5^th International Conference on Advanced Nanomaterial and Nanotechnology (ICANN-2017),IIT Guwahati-781039, India

A dynamical study of lead-free KNaNbO₃-MnO₂

R. George, R.Soni, D.C. Joshi, P.Pramanik, S.Nayak, S.Pittala and S. Thota
International Conference on Nanomaterials and Nanotechnology (ICNANO-2017), 1-3 March 2017, VBRI-Allahabad, India

X-ray photoelectron spectroscopic studies of Na doped NiO

D. C. Joshi, S. Nayak, P. Pramanik, R. George, R. Soni, K. Dasari and S. Thota
UGC-SAP (DRS III) Sponsored National Seminar on Advances in Materials Science, 24-25 March 2017, Gauhati University, Guwahati-781014, Assam, India.

Mott Variable-Range Hopping Conduction Mechanism in Ferroelectric KNbO₃-NiO

R.Soni, R. George, D.C. Joshi, P. Pramanik1, S. Nayak and S. Thota
International Conference on Nanomaterials and Nanotechnology (ICNANO-2017), 1-3 March 2017, VBRI-Allahabad, India

Thermal Hysteresis in NaNbO₃-NiO Two-Phase Composites

R. George, R. Soni, D. C. Joshi, S. Nayak, P. Pramanik, S. Ghosh, and S. Thota
UGC-SAP (DRS III) Sponsored National Seminar on Advances in Materials Science, 24-25 March 2017, Gauhati University, Guwahati-781014, Assam, India.

Synthesis and Characterization of MgCo₂O₄ Nanorods for Fuel Cell Applications

S. Nayak, D. C. Joshi, P. Pramanik and S. Thota
International Conference on Nanomaterials and Nanotechnology (ICNANO-2017), 1-3 March 2017, VBRI-Allahabad, India

On the nature of diffused first-order phase transition in NaNbO₃-MnO₂ two-phase composites

R. Soni, D. C. Joshi, S. Nayak, P. Pramanik, R. George, S.Ghosh, and S. Thota
UGC-SAP (DRS III) Sponsored National Seminar on Advances in Materials Science, 24-25 March 2017, Gauhati University, Guwahati-781014, Assam, India.

Quantum-size effects in MnCo₂O₄ Nanocrystals

P. Pramanik, S. K. Singh, R. Soni, D. C. Joshi, S. Nayak and S. Thota
International Conference on Nanomaterials and Nanotechnology (ICNANO-2017), 1-3 March 2017, VBRI-Allahabad, India

Dynamic ac-conductivity studies of Cobalt-Orthotitanate

S.Nayak, J. Dhillon, S. K. Deshpande, D. C. Joshi, P. Pramanik, R. George, and S. Thota
UGC-SAP (DRS III) Sponsored National Seminar on Advances in Materials Science, 24-25 March 2017, Gauhati University, Guwahati-781014, Assam, India.

Ferrimagnetic behavior and Optical properties of MnCo_2-pCu_pO₄Nanostructures

P. Pramanik, D. C. Joshi, and S. Thota
National Conference on Nanomaterials and its Applications (NCNA-17), 20-21 Sept, 2017, Golaghat-785621, Assam, India.

Electronic structure and Dielectric studies of Na doped NiO

D. C. Joshi, P. Pramanik, T. Nagendrababu and S. Thota
National Conference on Nanomaterials and its Applications (NCNA-17), 20-21 Sept, 2017, Golaghat-785621, Assam, India.

Low-Temperature anomalous magnetic behavior of TiCo₂O₄

S. Thota, K. Dasari, S. Nayak, D. C. Joshi, P. Pramanik, A. Waske and T. Sarkar
5^th IEEE International Conference on Microwave Magnetics, The University of AlabamaTuscaloosa, 5-8 June, 2016, AL, USA.

Compositional dependence of structural and X-ray photoelectron spectroscopic studies of Zn_1-xNi_xO/NiO Two-Phase Composites

D. C. Joshi, S. Nayak, P. Pramanik, K. Dasari, R. Palai, Md. Qureshi and S. Thota
2nd International Conference on Materials Science and Technology, St. Thomas College Pala Arunapuram, Kottayam, Kerala, India

X-ray Photoelectron Spectroscopy and Optical properties of MnCo₂O₄ Nanostructures

P. Pramanik, D. C. Joshi, S. Nayak, S Sambasivam, B. C. Choi, and S. Thota
2nd International Conference on Materials Science and Technology, St. Thomas College Pala Arunapuram, Kottayam, Kerala, India

Structural and Magnetic properties of Cu doped Cobalt Orthotitanate

S. Nayak, D. C. Joshi, P. Pramanik, M. Krautz, A. Waske and S. Thota
2nd International Conference on Materials Science and Technology, St. Thomas College Pala Arunapuram, Kottayam, Kerala, India

The localized charge carrier transport properties of Zn_1-xNi_xO/NiO (0.3 < x < 1) two-phase composites

D. C. Joshi, K. Dasari, S. Pittala, S. Nayak and S. Thota
57^th Electronic Materials Conference, The Ohio State University, Columbus, Ohio, 24-25 June 2015, USA.

Effect of ‘Na' Doping on the Structural, Dielectric and Electronic Characteristics of Wide Band-Gap NiO (Conference Proceedings)

D. C. Joshi, K. Dasari, S. Nayak, P. Pramanik, P. Suresh, S. Pittala, and S. Thota
9^TH WORKSHOP ON FRONTIER IN ELECTRONICS (WOFE-2015) & 2^nd WORKSHOP ON MULTIFUNCTIONAL NANOMATERIALS (WMN-15) Dec 15-18, 2015, CARIBE HILTON HOTEL, San Juan, PR, USA

Micro-Raman and Electron Spin Resonance studies of Co_3-xTi_xO₄

S. Nayak, D. C. Joshi and S. Thota
2nd International Conference on Nanotechnology ICNT-2015 & Indo-USA joint symposium, Haldia (W.B), India

On the growth mechanism and Electron Spin Resonance studies of cubic-phase ZrO₂ nanostructures stabilized with Cu²⁺

S. Thota, S. Nayak, A. Mallick, D. C. Joshi, S. Sambasivam and Md. Qureshi
2nd International Conference on Nanotechnology ICNT-2015 & Indo-USA joint symposium, Haldia (W.B), India

Growth mechanism and Electron-Spin-Resonance studies of Zn_1-xNi_xO/NiO two-phase nanocomposite (IEEE Xplore Conference Proceedings)

D. C. Joshi, D.D. Harish, D. Roy, S. Nayak, Md. Qureshi, R.L.N. Sai prasad, T. Shiyani, D. Pamu, S. Thota
2nd IEEE International Conference on Emergin Electonics ICEE-2014, 3-6 December-2014, IISc Bangalore, Karnataka (India)

On the cubic phase stability and magnetic properties of Cu doped ZrO₂ Bulletin of American Physical Society

S. Thota, K. Pisane, S. Singh, and M.S. Seehra, APS, 3-7 March 2014 Meeting, Denver Colorado (USA)

Effect of Cu doping on the magnetism of MnCo₂O₄ Cubic spinels Bulletin of American Physical Society

S. K. Singh, M.S. Seehra, and S. Thota, APS, 3-7 March 2014 Meeting, Denver Colorado (USA)

Broadband dielectric studies of Zn_1-xNi_xO/NiO ceramics for varistor device applications

D. Dayapule, P. Mahesh, T.S. Kumar, D. Pamu and S. Thota
6th International conference on Nanoscience and Nanotechnology, Chandigarh, Punjab, India, March 3-5, (2014)

Dielectric spectroscopy of Dy₂O₃ doped (K_0.5Na_0.5)NbO₃

P. Mahesh, S. Thota and D. Pamu
58th Department of Atomic Energy-Solid State Physics Symposium, Thapar University, India, Dec 17-21, (2013)

The role of surface effects on the optical behavior of nanocrystalline NiO

S. Thota, S. K. Singh, A. Mallick,(AIP Conference Proceedings, 1536, 521 (2013))
International Conference on Recent Trends in Applied Physics & Mat. Sc(RAM), Bikaner, India, Feb 1-2, 2013

Phase evaluation and Optical studies of ZrMnO₂ and ZrCoO₂ nanocrystallites

S. Thota, A. Ansari, A. Mallick, S. K. Singh, and J. Kumar (AIP Conference Proceedings, 1536, 113 (2013))
International Conference on Recent Trends in Applied Physics and Materials Science (RAM 2013), Bikaner, 1-2-2013

Memory effects and Relaxation dynamics of MnCo₂O₄

S. Thota, S. K. Das, A. Kumar, S. Sangaraju and B. C. Choi
IEEE International conference on Microwave magnets (ICMM), Kaiserslautern, Germany, Aug 26-29, 2012

Dielectric response of the complex spin ordering process in Mn₃O₄

S. Thota, K. Singh, D. Pamu, Ch. Simon and W. Prellier
The International conference on Nanoscience and Technology (ICONSAT), Hyderabad, India, Jan 20-23, 2012

Synthesis, structure, and magnetic analysis of the cubic defect spinel ZnMnO₃

M. S. Seehra, J. D. Rall, S. Thota and J. Kumar
56 International conference on Magnetism and Magnetic Materials (MMM), Scottsdale, USA, Oct-30, 2011

Effect of annealing on the structural and optical properties of nanocrystalline MgTiO₃ thin films

T. S. Kumar, R. K. Bhuyan, S. Thota, A. R. James and D. Pamu
The International conference on Nanoscience and Technology (ICONSAT), Hyderabad, India, Jan 20-23, 2012

Influence of binary mixed phase manganese oxides on the magnetic properties of Mn₂O₃ nanocrystallites

S. Thota, A. Kumar, T. Shiyani and J. Kumar
2nd International conference on Advanced Nanomaterials and Nanotechnology (ICANN-2011), IIT Guwahati, 8-12-11

Optical and magnetic studies of Zn_1-2yNi_yCo_yO degenerate semi-magnetic semiconductors

S. Thota and J. Kumar AIP Conference Proceedings, 1447, 1047 (2012)
56th DAE-Solid State Physics Symposium, SRM University, India, December 19-23, 2011

Recent Progress in artificial superlattices

U. Luders, A. David, S. Thota, R. Fresard and W. Prellier
Abstracts of the 18th International Vacuum Congress, Beijing, China, August 23-27, 2010

Magnetocaloric effect and enhanced refrigeration efficiency in LaSrMnO₃-SrRuO₃ superlattices

Q. Zhang, S. Thota, F. Guillou, P. Padhan, V. Hardy, A. Wahl, and W. Prellier
Minerals, Metals and Materials Society AIME 420 commonwealth POBox430 Warrendale PA15086 USA

Magnetic structure and magnetocaloric properties of LaSrMnO₃SrRuO₃ superlattices

S. Thota, Q. Zhang and W. Prellier
European Materials Research Society (E-MRS) Spring Meeting, Strasburg, France, June 6-11, 2010

Comparative study of MgMoO nanopowders by sol-gel synthesis and solid state reaction

A. Kumar, S. Thota, K. N. Rai and J. Kumar
National conference on recent advances in condensed matter physics, Hamirpur, India, May 23-24, 2009

Magnetic behaviour of Manganese oxide nanoparticles obtained by thermal decomposition of sol-gel derived oxalates

S. Thota, B. Prasad and J. Kumar
Particles Based Advanced Materials, Orlando, USA, May 10-13, 2008

Evidence for Ferromagnetic ordering in PLD grown Zn_1-xNi_xO/ZnO bilayer thin films

S. Thota, L. M Kukreja and J. Kumar
52nd International conference on Magnetism and Magnetic Materials (MMM), Tampa, FL, USA, Nov 4-9, 2007

Characteristics of PLD grown Zn_1-xNi_xO/ZnO bi-layer thin-films

S. Thota, L. M. Kukreja and J. Kumar
4th National symposium on Pulsed Laser Ablation (PLD) of thin films and nanostructures materials meet organized by DAE-BRNS at Rajkot Gujarat, India October 3-5, 2007

Evidence for ferromagnetic ordering in nickel doped ZnO diluted magnetic semiconductor at room temperature

S. Thota, O. P. Singh, T. Dutta, and J. Kumar
International conference on MEMS and Semiconductor Nanotechnology, IIT Kharagpur, 20-23 Dec 2005 (India)