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Effect of high pressure on the relaxor ferroelectrics Na1/2Bi1/2TiO3 (NBT) and PbMg(1/3)Nb(2/3)O3 (PMN)
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UNSPECIFIED (2004) Effect of high pressure on the relaxor ferroelectrics Na1/2Bi1/2TiO3 (NBT) and PbMg(1/3)Nb(2/3)O3 (PMN). In: 10th European Meeting on Ferroelectricity, Univ Cambridge, Cambridge, ENGLAND, AUG 03-08, 2003. Published in: FERROELECTRICS, 302 pp. 539-544. doi:10.1080/00150190490455269 ISSN 0015-0193.
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Official URL: http://dx.doi.org/10.1080/00150190490455269
Abstract
The aim of the present paper is to review and briefly discuss recent experimental results on the effect of high pressure (p > 1.5 GPa) on relaxor ferroelectrics, exemplified by Na1/2Bi1/2TiO3 and PbMg1/3Nb2/3O3. The main result is that relaxor ferroelectrics present important polar and structural pressure-instabilities, which lead to both phase transitions of the average structure and considerable changes of the local structure. It is in particular the observation of a pressure-induced suppression of the relaxor characteristic X-ray diffuse scattering that points to important changes in the local order. The complementary use of Raman spectroscopy, X-ray diffraction and X-ray diffuse scattering allows the proposition of a mechanism for the observed changes.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) Q Science > QC Physics |
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Journal or Publication Title: | FERROELECTRICS | ||||
Publisher: | TAYLOR & FRANCIS LTD | ||||
ISSN: | 0015-0193 | ||||
Official Date: | 2004 | ||||
Dates: |
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Volume: | 302 | ||||
Number of Pages: | 6 | ||||
Page Range: | pp. 539-544 | ||||
DOI: | 10.1080/00150190490455269 | ||||
Publication Status: | Published | ||||
Title of Event: | 10th European Meeting on Ferroelectricity | ||||
Location of Event: | Univ Cambridge, Cambridge, ENGLAND | ||||
Date(s) of Event: | AUG 03-08, 2003 |
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