Citation
Ev. Charnaya et al., Temperature dependence of the Li-7 quadrupole constant in LiTaO3, FERROELECTR, 234(1-4), 1999, pp. 223-234
Citations number
31
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
FERROELECTRICS
ISSN journal
00150193
→ ACNP
Volume
234
Issue
1-4
Year of publication
1999
Pages
223 - 234
Database
ISI
SICI code
0015-0193(1999)234:1-4<223:TDOTLQ>2.0.ZU;2-H
Abstract
The Li-7 qundrupole coupling constant in the LiTaO3 single crystal has been
measured within the temperature range 160 to 460 K. The electric field gra
dient at the lithium site has been computed by using the model of point mul
tipoles taking into account the polarizability of oxygen ions. The increase
of the quadrupole constant with increasing temperature has been treated as
a result of temperature alterations in positional parameters.