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CSIR-Central Glass & Ceramic Research Institute
A Unit of Council of Scientific and Industrial Research
सीएसआईआर-केंद्रीय काँच एवं सिरामिक अनुसंधान संस्थान
वैज्ञानिक और औद्योगिक अनुसंधान परिषद की एक इकाई
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Dr. Dipten Bhattacharya
Profile of Dr. Dipten Bhattacharya
Senior Principal Scientist
Advanced Mechanical and Materials Characterization Division
Central Glass and Ceramic Research Institute
(Council of Scientific and Industrial Research)
Phone: +91-33-2473-3469/96/76/77 extn. 3470
Dr. Bhattacharya joined CGCRI on 1
Orbital Physics in Strongly Correlated Electron Systems; Orbitronics; Multiferroics; Nanoscale Systems
Experimental work on interplay among charge, spin, orbital, and lattice degrees of freedom in strongly correlated electron systems; orbital physics - orbital order-disorder transition; orbitronics, multiferroics; electronic, structural, and magnetic phase transition at nanoscale etc
Bar-Ilan University, Israel
NPL, New Delhi
Young Scientist Award in Physical Science, CSIR, Govt. of India, 2001
“Multiferroicity in nano and improper ferroelectric systems” at the Malaviya National Institute of Technology, Jaipur, on 5 September, 2014
“Room temperature multiferroicity in nano and improper ferroelectric systems” at the Department of Materials Science and Engineering, IIT, Kanpur, on 19 March, 2014
“Subtle interplay of electron and lattice degrees of freedom: newer exotica in older electronic ceramics” at the Department of Ceramic Engineering, NIT, Rourkela, on 19 November, 2013.
“Spontaneous Exchange Bias in the BiFeO3-Bi2Fe4O9 Nanocomposite” at the Kolkata-Moscow meeting held at S N Bose National Centre for Basic Sciences, Kolkata during 22-23 January, 2013.
"Multiferroicity in nanoscale BiFeO3" at the International School & Conference on Functional Materials, organized jointly by HRI, SINP, & Cambridge University, held at Harish-Chandra Research Institute, Allahabad, 28 March - 3 April, 2011.
"Electric field driven phase transition in LaMnO3" at the UGC Refresher Course on Recent Advances in Energy Engineering and Environment Management, held at the Jadavpur University, Kolkata, 1-22 February, 2011.
"Electric field driven orbital order-disorder transition in LaMnO3" at the National School and Conference on Quantum Dynamics of Electrons, held at the IIT, Kharagpur, 17-18 April, 2009.
"Do electronic multiferroics offer better maneuverability in the coupling between electric polarization (P) and magnetization (M)?" at the International Conference on Multiferroics, organized jointly by DST & JSPS, held at the Indian Association for the Cultivation of Science, Kolkata, 4-6 February, 2008.
"Synthesis of thin films of functional materials and their characterization" at the International School on Thin Films: Synthesis, Characterization, Properties, organized by Materials and Energy Research Centre (MERC), held at MERC, Tehran, Iran, during 16-18 September, 2006.
Publications Summary: in SCI Journals = 63; in National/International Conference Proceedings = 4;
Selected Recent Publications:
S. Goswami, Dipten Bhattacharya, L. Keeney, T. Maity, S.D. Kaushik, V. Siruguri, G.C. Das, H. Yang, W. Li, C.-Z. Gu, M.E. Pemble, and S. Roy, “Large magnetoelectric coupling in nanoscale BiFeO3 from direct electrical measurements”, Phys. Rev. B 90, 104402 (2014).
U. Chowdhury, S. Goswami, Dipten Bhattacharya, J. Ghosh, S. Basu, and S. Neogi, “Room temperature multiferroicity in orthorhombic LuFeO3”, Appl. Phys. Lett. 105, 052911 (2014).
T. Maity, S. Goswami, Dipten Bhattacharya, and S. Roy, “Origin of the asymmetric exchange bias in BiFeO3-Bi2Fe4O9 nanocomposite”, Phys. Rev. B 89, 140411(R) (2014).
S. Goswami, Dipten Bhattacharya, W. Li, A. Cui, Q. Jiang, and C.-Z. Gu, “A training effect on electrical properties in nanoscale BiFeO3”, Nanotechnology 24, 135705 (2013).
T. Maity, S. Goswami, Dipten Bhattacharya, and S. Roy, “Superspin glass mediated giant spontaneous exchange bias in a nanocomposite of BiFeO3-Bi2Fe4O9”, Phys. Rev. Lett. 110, 107201 (2013).
Landmark Research Contribution
Authentic determination of magnetoelectric multiferroic coupling in nanoscale BiFeO3 by both crystallography and direct electrical measurements on nanochains patterned by focused ion beam and e-beam lithography
Systematic mapping of crossover from first to higher order orbital order-disorder transition as a function of lattice distortion, disorder, charge carrier concentration, and particle size (bulk down to ~10 nm) in a series of rare-earth perovskite manganites and identification of the origin of crossover in each case.
Observation of pulsed electric field driven orbital order-disorder transition in LaMnO3 which is expected to assume immense importance for future electronics based on "orbitronics".
Discovery of frequency dependent multiferroicity in an electronic ferroelectric system.
Degree Awarded: 2 [Topic: (i) Orbital Order-Disorder Transition in Rare-Earth Perovskite Manganites; (ii) Multiferroicity in Bulk and Nanoscale BiFeO3]
On-Going: 1 [Topic: Multiferroicity in Electronic Ferroelectric Systems]
Updated on: 26-09-2018 17:27
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