Quasielastic neutron scattering and the dynamics of Mg2+ in the fast ion and liquid phases of Mg3Bi2

Authors
Howells, WS Barnes, AC Hamilton, M
Citation
Ws. Howells et al., Quasielastic neutron scattering and the dynamics of Mg2+ in the fast ion and liquid phases of Mg3Bi2, PHYSICA B, 266(1-2), 1999, pp. 97-99
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
266
Issue
1-2
Year of publication
1999
Pages
97 - 99
Database
ISI
SICI code
0921-4526(199905)266:1-2<97:QNSATD>2.0.ZU;2-Z
Abstract
The solid alpha-phase of Mg3Bi2 does not melt directly but undergoes a phas e transition to the beta-phase and then melts. From a neutron diffraction e xperiment it was concluded that beta-Mg3Bi2 is a superionic conductor in wh ich magnesium is the mobile ion with the bismuth ions forming the rigid lat tice. Two quasielastic neutron scattering experiments have been performed t hat confirm Mg2+ is indeed mobile in the beta-phase. (C) 1999 Elsevier Scie nce B.V. All rights reserved.