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Disorder due to a Strong Correlation of Ionic Displacements.

Authors :
Prosandeev, S. A.
Turik, A. V.
Bunin, M. A.
Source :
Ferroelectrics. 2004, Vol. 299 Issue 1, p185-189. 5p.
Publication Year :
2004

Abstract

The covalency of the chemical bonding in perovskites is shown to lead to correlations of ionic displacements, which can result in the appearance of additional lines in X-ray absorption spectra. These possibilities are discussed in connection with the explanation of the nature of the ferroelectric phase transition in prototype ferroelectrics like BaTiO 3 and KNbO 3 . [ABSTRACT FROM AUTHOR]

Subjects

Subjects :
*ABSORPTION spectra
*FERROELECTRICITY
*POLARIZATION (Electricity)
*FERROELECTRIC crystals
*MOLECULAR spectroscopy
*EXCITON theory

Details

Language :
English
ISSN :
00150193
Volume :
299
Issue :
1
Database :
Academic Search Index
Journal :
Ferroelectrics
Publication Type :
Academic Journal
Accession number :
13310874
Full Text :
https://doi.org/10.1080/00150190490429772
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