THEORETICAL-STUDY OF OPTICAL ANISOTROPY I N THE TETRAGONAL PHASE OF KNBO3

Authors
KHATIB D KINASE W LIFSAL L TOUMANARI A BOUGARFA L
Citation
D. Khatib et al., THEORETICAL-STUDY OF OPTICAL ANISOTROPY I N THE TETRAGONAL PHASE OF KNBO3, Annales de chimie, 20(2), 1995, pp. 61-65
Citations number
14
Categorie Soggetti
Chemistry,"Material Science
Journal title
Annales de chimie → ACNP
ISSN journal
01519107
Volume
20
Issue
2
Year of publication
1995
Pages
61 - 65
Database
ISI
SICI code
0151-9107(1995)20:2<61:TOOAIN>2.0.ZU;2-X
Abstract
The optical anisotropy in the tetragonal phase of KNbO3 is discussed q uantitatively from a microscopic model taking account of the dipole-di pole interaction and the spontaneous Kerr effect due to the local fiel d acting on the constituent ions. The result of calculations point out the important role of the lattice deformations and the electronic pol arizabilities of the constituent ions.