Effect of high pressure on the relaxor ferroelectrics Na1/2Bi1/2TiO3 (NBT) and PbMg(1/3)Nb(2/3)O3 (PMN)
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.Full text not available from this repository.
Official URL: http://dx.doi.org/10.1080/00150190490455269
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)|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)
Q Science > QC Physics
|Journal or Publication Title:||FERROELECTRICS|
|Publisher:||TAYLOR & FRANCIS LTD|
|Number of Pages:||6|
|Page Range:||pp. 539-544|
|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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