A
Ashok Kumar
Researcher at Council of Scientific and Industrial Research
Publications - 173
Citations - 4289
Ashok Kumar is an academic researcher from Council of Scientific and Industrial Research. The author has contributed to research in topics: Ferroelectricity & Dielectric. The author has an hindex of 31, co-authored 173 publications receiving 3534 citations. Previous affiliations of Ashok Kumar include National Physical Laboratory & University of Puerto Rico, Río Piedras.
Papers
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Moon Electrostatic Potential and Dust Analyser (MESDA) for Future Lunar Mission
J. P. Pabari,Debabrata Banerjee,A. Kanada,S. K. Goyal,A. Bhattacharya,P. Varma,Ashok Kumar,R. B. Upadhyay +7 more
TL;DR: In this article, a Moon Electrostatic Potential and Dust Analyser (MESDA) has been proposed for future lander mission to the moon, which has two independent instruments, viz. Lunar Surface Potential Detector and Lunar Dust Detector.
Journal ArticleDOI
Effect of Processing Conditions on Electrical and Magnetic Properties of Pb(Zr, Ti)O3 CoFe2O4 Multilayers Thin Films
Nora Ortega,P. Bhattacharya,Ram S. Katiyar,S. B. Majumder,Ichiro Takeuchi,Prasanta Dutta,M. S. Sheehra,Ashok Kumar +7 more
TL;DR: In this paper, the effect of interdiffusion at the interface of multilayers (MLs) and reversing the order of FE and FM layers in the multilayer configuration on the electrical/magnetic properties was investigated.
Proceedings ArticleDOI
Room temperature novel multiferroic single phase materials: (PbFe 0.5 Ta 0.5 O 3 ) x -(PbZr 0.53 Ti 0.47 O 3 ) (1−x)
TL;DR: In this paper, a perovskite type structure was proposed to produce a single phase material in ceramic and thin films, which has low loss, possesses room temperature multiferroic properties, and has strong magnetoelectric coupling.
Journal ArticleDOI
SIZE AND STRAIN EFFECTS ON RELAXOR FERROELECTRIC PROPERTIES OF PBSC0.5NB(1 −x)/2TAx/2O3 THIN FILMS AND NANOCERAMICS
TL;DR: In this article, a comparative study of the microstructure, dielectric properties, and polarization of PSNT and PST thin films and nano ceramics were carried out over a wide range of temperature (100 K-600 K) and frequency (100 Hz to 1 MHz).
Patent
Micro and nanoscale magnetoelectric multiferroic lead iron tantalate-lead zirconate titanate
Ram S. Katiyar,Ashok Kumar,Nora Ortega,Dilsom A. Sanchez,James F. Scott,Donald M. Evans,John Martin Gregg +6 more
TL;DR: A novel class of materials made by combining the best qualities of both lead iron tantalate and lead iron titanate (PZT) to synthesize multiferroic (ferroelectric and ferromagnetic) and magnetoelectric properties was proposed in this article.