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Effect of Nd+3 and K+ Substitutions on Phase Transition of Ferroelectric lead Germanate Single Crystals

Published on October 2012 by A N Wazalwar, A G Katpatal
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International Conference on Benchmarks in Engineering Science and Technology 2012
Foundation of Computer Science USA
ICBEST - Number 2
October 2012
Authors: A N Wazalwar, A G Katpatal
f2ca4143-8119-4d35-b0cf-e5c915c47067

A N Wazalwar, A G Katpatal . Effect of Nd+3 and K+ Substitutions on Phase Transition of Ferroelectric lead Germanate Single Crystals. International Conference on Benchmarks in Engineering Science and Technology 2012. ICBEST, 2 (October 2012), 23-26.

@article{
author = { A N Wazalwar, A G Katpatal },
title = { Effect of Nd+3 and K+ Substitutions on Phase Transition of Ferroelectric lead Germanate Single Crystals },
journal = { International Conference on Benchmarks in Engineering Science and Technology 2012 },
issue_date = { October 2012 },
volume = { ICBEST },
number = { 2 },
month = { October },
year = { 2012 },
issn = 0975-8887,
pages = { 23-26 },
numpages = 4,
url = { /proceedings/icbest/number2/8697-1029/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 International Conference on Benchmarks in Engineering Science and Technology 2012
%A A N Wazalwar
%A A G Katpatal
%T Effect of Nd+3 and K+ Substitutions on Phase Transition of Ferroelectric lead Germanate Single Crystals
%J International Conference on Benchmarks in Engineering Science and Technology 2012
%@ 0975-8887
%V ICBEST
%N 2
%P 23-26
%D 2012
%I International Journal of Computer Applications
Abstract

Double doped (Nd+3 + K+) ferroelectric lead germanate single crystals were grown by controlled cooling of melt. Greenish tinge crystals of 5 x 4 x 3 mm3 were found embedded in the solid. Pure lead germanate was grown by cz technique for comparative analysis. Dielectric constant and loss tangent of pure crystals showed a sharp dielectric peak at 179°C while dielectric constant of doped crystals showed temperature dependence with diffuse dielectric maxima at 350°C. Results suggest a significant positive shift of ferroelectric transition temperature by 171°C. Mechanisms for the shift in transition temperature and diffuse nature of dielectric maxima are discussed.

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Index Terms

Computer Science
Information Sciences

Keywords

Effect Nd+3