A
Amit Kumar
Researcher at Indian Institutes of Technology
Publications - 2301
Citations - 24042
Amit Kumar is an academic researcher from Indian Institutes of Technology. The author has contributed to research in topics: Medicine & Biology. The author has an hindex of 65, co-authored 1618 publications receiving 19277 citations. Previous affiliations of Amit Kumar include M. J. P. Rohilkhand University & Siemens.
Papers
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Journal ArticleDOI
A Strain-Driven Morphotropic Phase Boundary in BiFeO3
R. J. Zeches,Marta D. Rossell,Jinxing Zhang,Alison Hatt,Qing He,Chan-Ho Yang,Amit Kumar,C. H. Wang,A. Melville,A. Melville,Carolina Adamo,Carolina Adamo,Guang Sheng,Ying-Hao Chu,Jon F. Ihlefeld,Jon F. Ihlefeld,Rolf Erni,Claude Ederer,Venkatraman Gopalan,Long Qing Chen,Darrell G. Schlom,Nicola A. Spaldin,Lane W. Martin,Lane W. Martin,Ramamoorthy Ramesh +24 more
TL;DR: Electric field–dependent studies show that a tetragonal-like phase can be reversibly converted into a rhombohedral- like phase, accompanied by measurable displacements of the surface, making this new lead-free system of interest for probe-based data storage and actuator applications.
Proceedings ArticleDOI
Ferroelectric hafnium oxide: A CMOS-compatible and highly scalable approach to future ferroelectric memories
Johannes Müller,T. S. Boscke,Stefan Müller,Ekaterina Yurchuk,P. Polakowski,Jan Paul,Dominik Martin,Tony Schenk,K. Khullar,A. Kersch,Wenke Weinreich,S. Riedel,Konrad Seidel,Amit Kumar,Thomas M. Arruda,Sergei V. Kalinin,Till Schlösser,Roman Boschke,R. van Bentum,Uwe Schröder,Thomas Mikolajick +20 more
TL;DR: In this paper, the ability to engineer ferroelectricity in HfO2 thin films, manufacturable and highly scaled MFM capacitors and MFIS-FETs can be implemented into a CMOS-environment.
Journal ArticleDOI
Probing Ferroelectrics Using Optical Second Harmonic Generation
TL;DR: In this paper, the optical second harmonic generation (SHG) was used to probe ferroelectric complex oxide crystals and thin films, and the results showed the ability to reveal domain structures and phases not normally visible with linear optics.
Journal ArticleDOI
Measuring oxygen reduction/evolution reactions on the nanoscale
TL;DR: Systematic mapping of oxygen activity on bare and platinum-functionalized yttria-stabilized zirconia surfaces is demonstrated and can be extended to a broad spectrum of oxygen-conductive and electrocatalytic materials.
Journal ArticleDOI
Ferroelectricity in strain-free SrTiO3 thin films.
Ho Won Jang,Amit Kumar,Sava Denev,M. D. Biegalski,Petro Maksymovych,Chung Wung Bark,C. T. Nelson,Chad M. Folkman,Seung Hyub Baek,Nina Balke,Charles M. Brooks,Charles M. Brooks,Dmitri A. Tenne,D. G. Schlom,Long Qing Chen,Xiaoqing Pan,Sergei V. Kalinin,Venkatraman Gopalan,Chang-Beom Eom +18 more
TL;DR: All SrTiO3 films and bulk crystals are relaxor ferroelectrics, and the role of strain is to stabilize longer-range correlation of preexisting nanopolar regions, likely originating from minute amounts of unintentional Sr deficiency in nominally stoichiometric samples.