Faculty Details

Areas of Interest

• Low Temperature Physics
• Superconductivity
• Magnetic materials
• Cryogenic insulation

Current Research

Students

Current PhD Students

• PH16D028    RAJALEKSHMI T R
• PH19D035    MANAB MANDAL
• PH19D055    AKASHRA DADHICH
• PH17D035    ANNU YADAV (Co-Guidance)
• PH18D203    SANTOSH KUMAR (Co-Guidance)
• PH20D099    SANUJA KUMAR KHUNTIA (Co-Guidance)

Recent Publications

• Sign reversal of anomalous Hall conductivity and magnetoresistance in cubic noncollinear antiferromagnet thin films. J Mukherjee, TS Suraj, H Basumatary, K Sethupathi, KV Raman. Physical Review Materials. 5 (1). 014201. 2021.
• Pair‐Emission‐Induced Near‐Infrared Lasing from Ceramic Ga:LaCrO3 Microcrystals at Room Temperature. TR Rajalekshmi, T Dixit, MSR Rao, K Sethupathi. Physica Status Solidi (RRL)–Rapid Research Letters. 15 (4). 2000519. 2021.
• Study of Thermometry in Two-Dimensional Sb 2 Te 3 from Temperature-Dependent Raman Spectroscopy. MP Singh, M Mandal, K Sethupathi, MSR Rao, PK Nayak. Nanoscale research letters. 16 (1) . 1-8. 2021.
• Effective Bandgap Engineering in Perovskite Ferroelectrics by Successive Multiple Doping. S Samanta, M Rath, V Sankaranarayanan, K Sethupathi, MSR Rao. Physica Status Solidi (b). 257 (1). 1900272. 2020.
• Investigation on structural and magnetic properties of Al3+ and Ce3+ doped hexaferrites. G Venkatesh, R Subramanian, T Satish Kumar, J Abuthakir, L John Berchmans, K Sethupathi. Materials Today: Proceedings. 28. 440-449. 2020.
• Probing the Griffiths like phase, unconventional dual glassy states, giant exchange bias effects and its correlation with its electronic structure in Pr2− x SrxCoMnO6. Arkadeb Pal, Prajyoti Singh, Vinod K Gangwar, Amish G Joshi, P Khuntia, GD Dwivedi, Prince K Gupta, Mohd Alam, Khyati Anand, K Sethupathi, Anup K Ghosh, Sandip Chatterjee. Journal of Physics: Condensed Matter. 32 (21). 215801. 2020.
• On the giant magnetocaloric and mechanical properties of Mn–Fe–P–Si-Ge alloy. S Kavita, G Anusha, P Bhatt, V Suresh, R Vijay, K Sethupathi, R Gopalan. Journal of Alloys and Compounds. 817 . 153232. 2020.
• Modulations in relaxor nature due to Sr2+ doping in 0.68 PMN-0.32 PT ceramic. Pius Augustine, Muralidhar Miryala, Shibnath Samanta, S Pavan Kumar Naik, K Sethupathi, Masato Murakami, MS Ramachandra Rao. Ceramics International. 46 (5). 5658-5664. 2020.
• Effect of interfacial oxidation layer in spin pumping experiments on Ni80Fe20/SrIrO3 heterostructures. TS Suraj, Manuel Müller, Sarah Gelder, Stephan Geprägs, Matthias Opel, Mathias Weiler, K Sethupathi, Hans Huebl, Rudolf Gross, MS Ramachandra Rao, Matthias Althammer. Journal of Applied Physics. 128 (8) . 083903. 2020.
• Tunable and enhanced Rashba spin-orbit coupling in iridate-manganite heterostructures. TS Suraj, Ganesh Ji Omar, Hariom Jani, Muhammad Mangattuchali Juvaid, Sonu Hooda, Anindita Chaudhuri, Andrivo Rusydi, Kanikrishnan Sethupathi, Thirumalai Venkatesan, Ariando Ariando, MS Ramachandra Rao. Physical Review B. 102 (12) . 125145. 2020.
• Spin reorientation in antiferromagnetic Dy2FeCoO6 double perovskite . GR Haripriya, TW Heitmann, DK Yadav, GC Kaphle, Madhav Prasad Ghimire, R Pradheesh, J Joshi, P Vora, K Sethupathi, V Sankaranarayanan, HS Nair. Journal of Physics: Condensed Matter. 33 (2). 025802. 2020.
• Magnetocaloric and electrical transport properties of selenospinels A0. 9Cu0. 1Cr2Se4 (A= Cd and Zn). PS Behera, CA Dev, K Sethupathi, PA Bhobe, R Nirmala. Physica B: Condensed Matter. 573 . 7-12. 2019.
• Electrocaloric Effect with Variations of Diffusivity in Relaxor Ferroelectric Materials. S Samanta, V Sankaranarayanan, K Sethupathi. Journal of Electronic Materials. 48 (12). 7595-7602. 2019.
• Contrasting the magnetism in La2-xSrxFeCoO6 (x = 0,1,2) double perovskites: The role of electronic and cationic disorder. GR Haripriya, CMN Kumar, R Pradheesh, LM Martinez, CL Saiz, SR Singamaneni, T Chatterji, V Sankaranarayanan, K Sethupathi, B Kiefer, HS Nair. Physical Review B. 99 (18) . 184411. 2019.
• Evidence for ferromagnetic clusters at room temperature in Dy and Mn site co-substituted compounds: Dy0. 55Sr0. 45Mn1-xFexO3. K Yadagiri, R Nithya, AT Satya, K Sethupathi. Journal of Alloys and Compounds. 792 . 411-417. 2019.
• Temperature Dependence of Energy Storage Density and Differential Permittivity and Bandgap Study of Relaxor (Pb,La)Zr0.65Ti0.35O3. S Samanta, V Sankaranarayanan, K Sethupathi. Integrated Ferroelectrics. 202 (1) . 153-162. 2019.
• Hole doping effect on structure, transport and magnetic properties of Dy1-xBaxMnO3 (0 < x < 1). K. Yadagiri , R. Nithya , A.T. Satya and K. Sethupathi. Journal of Alloys and Compounds. 744. 82. 2018.
• Effect of micro-defects and Pb-loss on electrical and optical properties of PLZT ceramic. Shibnath Samanta, V. Sankaranarayanan and K. Sethupathi. Journal of Materials Science: Materials in Electronics (2018),. 29. 7239-52. 2018.
• The effect of A-site substitution on the structure and magnetism of Sr2-xPrxFeCoO6 (x = 0, 1, 2). G. R. Haripriya, Debamitra Chakraborty, R. Pradheesh, V. Sankaranarayanan, and K. Sethupathi. AIP Conference Proceedings. 1953. 120053. 2018.
• Hyperfine interaction and electronic spin fluctuation study on Sr2−xLaxFeCoO6 (x=0, 1, 2) by high-resolution backscattering neutron spectroscopy. T. Chatterji, B. Frick, M. Zamponi, M. Appel, H. S. Nair, R. Pradheesh, G. R. Haripriya, V. Sankaranarayanan, K. Sethupathi.. PHYSICAL REVIEW B. 98. 094429 . 2018.
• Flux pinning and improved critical current density in superconducting boron doped diamond films. Dinesh Kumar , Shibnath Samanta ,K Sethupathi and MS Ramachandra Rao. J. Phys. Commun.. 2 . 045015. 2018.
• Dielectric response of the magnetic perovskite oxide Eu2FeCoO6. Haripriya G. R., Pradheesh R., Sethupathi K., Sankaranarayanan V.. AIP Conference Proceedings. 1942 . 130052 . 2018.
• Band gap, piezoelectricity and temperature dependence of differential permittivity and energy storage density of PZT with different Zr/Ti ratios. Shibnath Samanta, V. Sankaranarayanan, K. Sethupathi. . 156. 456–462. 2018.
• Enhanced ferroelectricity in PLZT ceramic by precise La-doping, minimizing pyrochlore phase and lead loss. Shibnath Samanta,, V. Sankaranarayanan, K. Sethupathi,, M.S. Ramachandra Rao. Vacuum (2018), . 2018.
• Effect of successive multiple doping of La, Nb and Fe on structure and lattice vibration of MPB PZT. S Samanta, V Sankaranarayanan, K Sethupathi. Materials Today: Proceedings. 5 (14). 27919 - 27. 2018.
• The order of magnetic phase transitions in disordered double perovskite oxides Sm2FeCoO6 and Dy2FeCoO6. GR Haripriya, R Pradheesh, K Sethupathi, V Sankaranarayanan. AIP Advances. 8 (10). 101340. 2018.
• Tc suppression and impurity band structure in overdoped superconducting Boron-doped diamond films. D Kumar, M Chandran, DK Shukla, DM Phase, K Sethupathi, MSR Rao. Physica C: Superconductivity and its Applications. 555 . 28-34. 2018.
• Magnetic glass state and magnetoresistance in SrLaFeCoO6 double perovskite. Pradheesh. R., Harikrishnan S. Nair, Haripriya G. R., Anatoliy Senyshyn, Tapan Chatterji, V. Sankaranarayanan, K. Sethupathi... Journal of Physics: Condensed Matter V 29. 9. 095801 . 2017.
• Magnetic glass state and magnetoresistance in SrLaFeCoO6 double perovskite.. Pradheesh. R., Harikrishnan S. Nair, Haripriya G. R., Anatoliy Senyshyn, Tapan Chatterji, V. Sankaranarayanan, K. Sethupathi. Journal of Physics: Condensed Matter V 29. 9. 095801 . 2017.
• Temperature dependent structural studies on the spin correlated system A2FeCoO6 (A= Sm, Eu, Dy and Ho) using synchrotron radiation. Haripriya G. R., Pradheesh R.,M. N. Singh, A. K. Sinha, Sethupathi K., Sankaranarayanan V. AIP Advances. 7. 055826. 2017.
• High pressure behavior of superconducting boron doped diamond. Mahmoud Abdel-Hafiez, Dinesh Kumar, R. Thiyagarajan, Q. Zhang, R. T. Howie, K. Sethupathi, O. Volkova, A. Vasiliev, W. Yang, H. K. Mao and M.S. Ramachandra Rao.. Physical Review B. 95. 174519 . 2017.
• Stabilization heat treatment and functional response of 0.65[Pb (Mg1/3Nb2/3)O3]-0.35[PbTiO3] ceramics. Pius Augustinea,, Shibnath Samanta, Martando Rath, Muralidhar Miryala, K. Sethupathi, Masato Murakami, M.S. Ramachandra Rao. Materials Research Bulletin. 95. 47. 2017.
• Enhanced electron-phonon coupling and critical current density in rapid thermally quenched MgB2 bulk samples. T. S. Suraj , M. Muralidhar , K. Sethupathi , M.S. Ramachandra Rao , Murakami Masato. AIP Advances. 7. 085014. 2017.
• Band gap reduction and redshift of lattice vibrational spectra in Nb and Fe co-doped PLZT. Shibnath Samanta, Miryala Muralidhar, V. Sankaranarayanan, Sethupathi K, M.S. Ramachandra Rao and Masato Murakami. Journal of Materials Science . 52. 20. 2017.
• Spin reorientation and disordered rare earth magnetism in Ho2FeCoO6. G R Haripriya , Harikrishnan S Nair, R Pradheesh, S Rayaprol, V Siruguri, Durgesh Singh, R Venkatesh, V Ganesan, K Sethupathi and V Sankaranarayanan. J. Phys.: Condens. Matter . 29 . 475804. 2017.
• Influence of Barrier on Corona Discharge Activity in Liquid Nitrogen under AC voltages Adopting UHF Technique. Sarathi, R.; Mittal, L.; Sethupathi, K.. IEEE Transactions on Dielectrics and Electrical Insulation. 23 (1). 230-236. 2016.
• The Effect Of Particle Size on the Magnetic Properties of Y2FeCoO6. Haripriya G. R., Shashi Priya Balmuchu, Pradheesh R., K. Sethupathi, V. Sankaranarayanan. Proc. of the Intl. Conf. on Nanotechnology for Better Living, 3. 1. 173. 2016.
• Electrical treeing in XLPE cable insulation at cryogenic temperature under AC voltage. Mittal, L.; Sarathi, R.; Sethupathi, K. Cryogenics . (71). 62 - 67. 2015.
• Analysis of Surface Discharge Activity in Epoxy Nanocomposites in Liquid Nitrogen under AC Voltage. Sarathi, R ,Aravinth, S and Sethupathi, K. IEEE transactions on dielectrics and electrical insulation (New York, NY). 21 . 452. 2014.
• Large magnetoresistance and Jahn Teller effect in Sr2FeCoO6,. Pradheesh R, Harikrishnan S.Nair, V. Sankaranarayanan, K. Sethupathi. Eur. J. Phys. B. 85. 260 . 2012.
• Exchange bias and memory effect and in Sr2FeCoO6,. Pradheesh R, Harikrishnan S., V. Sankaranarayanan, K. Sethupathi. Appl. Phys. Lett.. 101. 142401 . 2012.
• Catalytic activity of platinum-cobalt alloy nanoparticles decorated functionalized multiwalled carbon nanotubes for oxygen reduction reaction in PEMFC,. Vinayan B P, Imran Jafri R, Rupali Nagar, N. Rajalakshmi, K. Sethupathi and S. Ramaprabhu,. International Journal of Hydrogen Energy,. 37 . 412 . 2012.
• Hydrogen storage properties of Pd decorated nitrogen doped graphene nanoplatelets,. Vinayan B P, K.Sethupathi and S.Ramaprabhu,. Journal of Nanoscience and Nanotechnology. 12. 1. 2012.
• Magnetic and magnetoresistive properties of nanocrystalline Pr1-xAxMn1-yCoyO3 (A = Sr, Ca: x = 0.3, y = 0.5).. Rabindra Nath Mahato, K. Sethupathi and V. Sankaranarayanan. AIP Conference Proceedings. 1276. 368 . 2011.
• Observation of spin glass state in weakly ferromagnetic Sr2FeCoO6,. Pradheesh R, Harikrishnan. S. Nair, C. M. N. Kumar, R. Nirmala, V. Sankaranarayanan, K. Sethupathi. J. Appl. Phys. 111. 053905 . 2011.
• Giant magnetoresistance and table-like magnetocaloric effect in double perovskite oxide PrSrMnCoO6.. Rabindra Nath Mahato, K. Sethupathi, V. Sankaranarayanan, R. Nirmala, A. K. Nigam and S. K. Malik. J. Applied Physics. 109. 07E319 . 2011.
• Magnetic and magnetocaloric properties of nanocrystalline perovskite oxides Pr1-xAxMn1-yCoyO3 (A = Ca, Sr: x = 0.3, y = 0.5) manganites.. N. Mahato, K. Sethupathi, V. Sankaranarayanan, R. Nirmala and S. K. Malik,. Journal of Nanoscience and Nanotechnology . 11. 2560-2564. 2011.
• Influence of barrier on partial discharge activity by a conducting particle in liquid nitrogen under AC voltages adopting UHF technique,. R. Sarathi, A. V. Giridhar, and K. Sethupathi,. Cryogenics,. 51. 79-84 . 2011.
• Understanding the incipient discharge activity in liquid nitrogen under AC voltage by adopting UHF technique,. R. Sarathi, A.V. Giridhar and, K. Sethupathi. IEEE Transactions on Dielectrics and Electrical Insulation . 18. 707 – 713. 2011.
• Large magnetocaloric effect in nanocrystalline Pr0.7Sr0.3MnO3. R. N. Mahato, K. Sethupathi, V. Sankaranarayanan and R. Nirmala. Journal of Applied Physics . 107. 09A943 . 2010.
• Electron field emission from magnetic nanomaterial encapsulated multi-walled carbon nanotubes.. R.B. Rakhi, X. Lim, X. Gao, Y. Wang, A.T.S. Wee, K. Sethupathi, S. Ramaprabhu and C.H. Sow,. Applied Physics A: Materials Science & Processing. 98. 195-202. 2010.
• Colossal magnetoresistance on double perovskite oxide La2CoMnO6. R. N. Mahato, K. Sethupathi and V. Sankaranarayanan. Journal of Applied Physics . 2010.
• Co-existence of giant magnetoresistance and large magnetocaloric effect near room temperature in nanocrystalline La0.7Te0.3MnO3. R.N. Mahato, K. Sethupathi, V. Sankaranarayanan, R. Nirmala. Journal of Magnetism and Magnetic Materials. 322. 2537-2540 . 2010.
• Analysis of partial discharge activity by a conducting particle in liquid nitrogen under AC voltages adopting UHF technique. R. Sarathi, A.V. Giridhar and K. Sethupathi. Cryogenics. 50. 43-49. 2010.

Teaching

• 2017 :  (Jan - May) - PH1010 Physics I / PHPCL0 Preparatory Course Physics Lab; (Jul - Nov) - PH1010 Physics I
• 2018 :  (Jan - May) - PH1010 Physics I; (Jul - Nov) - PH5600 Physics At Low Temperatures
• 2019 :  (Jan - May) - PH1010 Physics I / PH5900+ Project II; (Jul - Nov) - PH1020 Physics II
• 2020 :  (Jan - May) - PH1010 Physics I
• 2021 :  (Jan - May) - ID5792 Project III / PHPCL0 Preparatory Course - Physics Lab / PHPCT0 Preparatory Course - Physics Theory ; (Jul - Nov) - PHPCL0 Preparatory Course - Physics Lab / PHPCL0 Preparatory Course - Physics Theory
• 2022 :  (Jan - May) - PHPCL0 Preparatory Course - Physics Lab / PHPCL0 Preparatory Course - Physics Theory ; (Jul - Nov) - PH1010 Physics I
• 2023 :  (Jan - May) - PH1010 Physics I