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Your search keyword '"Dhiren K Pradhan"' showing total 2 results
Start Over Author "Dhiren K Pradhan" Journal ferroelectrics
2 results on '"Dhiren K Pradhan"'

1. Electric field induced weak ferroelectricity in Ba0.70Sr0.30TiO3, ceramics capacitors

Author

Ram S. Katiyar, Shiva Adireddy, Douglas B. Chrisey, Dhiren K. Pradhan, and Venkata Sreenivas Puli

Subjects
010302 applied physics, Structural phase, Materials science, business.industry, 02 engineering and technology, Dielectric, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Ferroelectricity, Energy storage, Electronic, Optical and Magnetic Materials, law.invention, Capacitor, law, Electric field, visual_art, 0103 physical sciences, visual_art.visual_art_medium, Mixed oxide, Optoelectronics, Ceramic, 0210 nano-technology, business
Abstract

Ba0.70Sr0.30TiO3-(BST) ceramics were fabricated by conventional mixed oxide route. The structural phase transition, ferroelectric, dielectric and energy storage properties of BST ceramics capacitor...

Published
2017
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2. Impedance and Raman Spectroscopic Studies on La-modified BLSF Ceramics

Author

S. M. Gupta, Venkata Sreenivas Puli, G. S. Kumar, Ram S. Katiyar, Dhiren K. Pradhan, G. Prasad, and N. V. Prasad

Subjects
Materials science, Analytical chemistry, chemistry.chemical_element, Dielectric, Condensed Matter Physics, Ferroelectricity, Electronic, Optical and Magnetic Materials, Bismuth, symbols.namesake, Full width at half maximum, chemistry, visual_art, symbols, visual_art.visual_art_medium, Relaxation (physics), Ionic conductivity, Ceramic, Raman spectroscopy
Abstract

The bismuth layer structured ferroelectric (BLSF) ceramics consisting of four-layers (BaLa0.75Bi3.25Ti4O15) and five-layers (Ba2La0.75Bi3.25Ti5O18) were prepared by the conventional solid-state reaction method. Summerfield ac-conductivity scaling analysis was used to evaluate the electrical behavior and the ac-conductivity isotherm curves. The relaxation results were corroborated with the Raman Peak positions and full width at half maximum was obtained by using Lorentzian peak fit method. Finally, the results were compared with the two-layered relaxor-compound (Bi2.45 La0.55TiNbO9) and technologically standard three-layered compounds (La0.75Bi3.25Ti3O12; BLT). The dielectric relaxation of Bi2.45La0.55TiNbO9 was verified using modified Curie-Weiss law and Vogel-Fulcher relationship. An attempt is made to realize the typical collective nature of the ionic conductivity of the samples.

Published
2015
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