Volume : V, Issue : X, October - 2016

RAMAN SPECTROSCOPY STUDY OF IMPURE BISMUTH SODIUM TITANATE

Aloke Verma

Abstract :

 Bismuth sodium titanate, Bi0.5Na0.5TiO3 (BNT) is one of the important ferroelectrics among the lead- free piezoelectric materials with large remnant polarization (Pr = 38 μC/cm2), high Curie temperature (Tc = 320°C), and shows diffuse phase transition (DPT) with perovskite structure. In addition to the DPT, two more phase transitions were reported at 230°C and at 500-600°C. It is observed the coexistence of the cubic and the tetragonal phases in the temperature ranges from 500°C to 540°C, and the tetragonal and the rhombohedral phases from 255°C to 400°C. Raman spectroscopic studies were done on lead-free antimony doped BNT in order to understand the effect of antimony in their local structure and symmetry

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Article: Download PDF    DOI : https://www.doi.org/10.36106/gjra  

Cite This Article:

Aloke Verma RAMAN SPECTROSCOPY STUDY OF IMPURE BISMUTH SODIUM TITANATE Global Journal For Research Analysis,Volume-5, Issue-10, October‾2016

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