Citation
Sy. Stefanovich et al., Bi2TeO5 polar phase high temperature transformation, FERROELECTR, 241(1-4), 2000, pp. 1947-1952
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
FERROELECTRICS
ISSN journal
00150193
→ ACNP
Volume
241
Issue
1-4
Year of publication
2000
Pages
1947 - 1952
Database
ISI
SICI code
0015-0193(2000)241:1-4<1947:BPPHTT>2.0.ZU;2-9
Abstract
The Bi2TeO5 polar phase (sp.gr.Abm2) is found to be changed to centrosymmet
ric orthorombic one in the result of a first-order phase transition. This f
ully reversible transition is spread over the interval of 780-820 degrees C
. Very strong dielectric relaxation at preceding temperatures is related wi
th oxygen vacancies redistribution in the crystal lattice. Upper temperatur
e phase is distinctive by its pronounced electric conductivity supposedly a
nionic in nature.