Entropy and the mechanism of phase transitions in elpasolites

Authors
Flerov, IN Gorev, MV
Citation
In. Flerov et Mv. Gorev, Entropy and the mechanism of phase transitions in elpasolites, PHYS SOL ST, 43(1), 2001, pp. 127-136
Citations number
33
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF THE SOLID STATE
ISSN journal
10637834 → ACNP
Volume
43
Issue
1
Year of publication
2001
Pages
127 - 136
Database
ISI
SICI code
1063-7834(2001)43:1<127:EATMOP>2.0.ZU;2-U
Abstract
The phase transitions in series of crystals with the general formulas A(2)B B'X-6 (X = F, Cl, Br, or CN) and Pb2BB'O-6 that belong to the elpasolite fa mily (space group Fm(3) over bar m) are analyzed. The influence of the size and the shape of cations and anions on the entropy and the mechanism of st ructural distortions is discussed. (C) 2001 MAIK "Nauka/Interperiodica".