Dr Deepshikha Jaiswal Nagar
Assistant Professor
Physics
Indian Institute of Science Education and Research Thiruvananthapuram
India
Biography
Ph. D. Tata Institute of Fundamental Research, Mumbai, India, 2007(Physics) Thesis: Vortex Phase Diagram Studies in Borocarbide Superconductors: YNi2B2C and LuNi2B2C M. Sc. Banaras Hindu University, Varanasi, India, 2000(Physics) B. Sc. Ewing Christian College, Allahabad, India, 1998 (Physics) Experience: Assistant Professor IISER Trivandrum, India (June 2012-present) DST-PURSE Fellow University of Hyderabad, Hyderabad, India (August 2011-May 2012) Research Work: Built and tested a capacitive dilatometer cell for measuring thermal expansion of high temperature superconductors. Post-doctoral Fellow Goethe Universitaet, Frankfurt-am-Main, Germany, (December 2007-August 2010) Research Work: Setup magnetocaloric experiments to study quantum phase transition in quasi-one dimentional organic insulators Brain Korea-21 Post-doctoral Fellow Seoul National University, Seoul, S. Korea, (February 2007-September 2007) Research Work: Growth of hexaferrite single crystals to study multiferroicity using dielectric constant and electric polarisation measurements.
Research Interest
Quantum Phase transitions in low dimensional and low spin organic insulators as well as Heavy Fermions using extreme temperatures, pressures and magnetic fields. Phase diagram of weakly pinned Type-II superconductors: effect of disorder, temperature and the underlying crystalline lattice on the vortex lattice. Multiferroics: Study of improper ferroelectrics as well as geometrically frustated multiferroics to understand the non-trivial cross-coupling of the order parameters. Set up thermal expansion experiments to study strongly correlated electron systems.
Publications
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B. Wolf, Y. Tsui, D. Jaiswal-Nagar, U. Tutsch, A. Honecker, K. Removi?-Langer, G. Hofmann, A. Prokofiev, W. Assmus, G. Donath and M. Lang, Magnetocaloric effect and magnetic cooling near a field-induced quantum critical point Proceedings of the National Academy of Sciences of the United States of America (PNAS) 108 (2011), 6862. (2) M. Lang, Y. Tsui, B. Wolf, D. Jaiswal-Nagar, U. Tutsch, A. Honecker, K. Removi?-Langer, A. Prokofiev, W. Assmus and G. Donath, Large magnetocaloric effect at the saturation field of an S = 1/2 antiferromagnetic Heisenberg chain, Journ. Low Temp. Phys. 159 (2010), 88. (3) Sae Hwan Chun, Yi Sheng Chai, Yoon Seok Oh, Deepshikha Jaiswal-Nagar, So Young Haam, Ingyu Kim, Bumsung Lee, Dong Hak Nam, Kyung-Tae Ko, Jae-Hoon Park, Jae-Ho Chung, and Kee Hoon Kim, Realization of giant magnetoelectricity in helimagnets, Phys. Rev. Lett. 104 (2010), 037204. (4) D. Jaiswal-Nagar, T. Isshiki,N. Kimura,H. Aoki,H. Takeya,S. Ramakrishnan and A. K. Grover, Anisotropy in spatial order-disorder transformations and the vortex lattice symmetry transition in YNi2B2C and LuNi2B2C, EuroPhys. Lett. 84 No. 6 (2008), 67004. (5) J. H. Chung, J. H. Lim, Y. J. Shin, J. S. Kang, D. Jaiswal-Nagar, and K. H. Kim, Possible charge disproportionation in 3R-AgNiO2 studied by neutron powder diffraction, Phys. Rev. B 78 (2008), 214417. (6) T. Isshiki, N. Kimura, H. Aoki, T. Terashima, S. Uji, K. Yamauchi, H. Harima, D. Jaiswal-Nagar, S. Ramakrishnan, and A. K. Grover,de Haas–van Alphen effect in the mixed state of LuNi2B2C : Anisotropy and field dependence of the damping due to superconductivity, Phys. Rev. B 78 (2008), 134528. (7) D. Jaiswal-Nagar, T. Isshiki, N. Kimura, H. Aoki, D. Pal, S. Ramakrishnan and A.K. Grover, Angular dependent study of the peak effect phenomenon in a weakly pinned single crystal of LuNi2B2C , Physica C 460 (2007), 1215. (8) D. Jaiswal-Nagar, A. D. Thakur, S. Ramakrishnan, A. K. Grover, D. Pal and H. Takeya, Flux jumps, Second Magnetization Peak anomaly and the Peak effect phenomenon in the weakly pinned single crystals of YNi2B2C and LuNi2B2C, Phys. Rev. B 74 (2006), 184514. (9) D. Jaiswal-Nagar, D. Pal, M.R. Eskildsen, P. C. Canfield, H. Takeya, S. Ramakrishnan and A. K. Grover, Vortex phase diagram studies in the weakly pinned single crystals of YNi2B2C and LuNi2B2C, Pramana-Journal of Physics, 66 (2006), 113-129. (10) D. Jaiswal-Nagar, A. D. Thakur, M. R. Eskildsen, P. C. Canfield, S. M. Yusuf, S. Ramakrishnan and A. K. Grover, dHvA Oscillations, Upper Critical Field and the Peak Effect Studies in a Single Crystal of LuNi2B2C, Physica B 359-361 (2005), 476. (11) P. Raychaudhuri, D. Jaiswal-Nagar, G. Sheet, S. Ramakrishnan and H. Takeya, Evidence of gap anisotropy in superconducting YNi2B2C using Directional point-Contact Spectroscopy, Phys. Rev. Lett. 93 (2004), 156802. (12) D. Jaiswal, A. A. Tulapurkar, S. Ramakrishnan, A. K. Grover, G. J. Nieuwenhuys and J. A. Mydosh, Superconducting properties of a CDW compound Lu5Ir4Si10, Physica B 312-313 (2002), 142.
