IRREVERSIBLE ELECTRICAL-RESISTIVITY AND UNSTABLE BONDING NATURE IN THE FAST-LI-ION CONDUCTOR BETA-LIGA

Authors
KURIYAMA K HAMANAKA H TAGUCHI R YAHAGI M
Citation
K. Kuriyama et al., IRREVERSIBLE ELECTRICAL-RESISTIVITY AND UNSTABLE BONDING NATURE IN THE FAST-LI-ION CONDUCTOR BETA-LIGA, Physical review. B, Condensed matter, 56(19), 1997, pp. 12062-12064
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
56
Issue
19
Year of publication
1997
Pages
12062 - 12064
Database
ISI
SICI code
0163-1829(1997)56:19<12062:IEAUBN>2.0.ZU;2-B
Abstract
The temperature-dependent electrical resistivity above 300 K of beta-L iGa [NaTl structure (space group Fd3m)] is presented. An irreversible behavior of electrical resistivity was observed in the Li excess beta- LiGa. An abrupt decrease in electrical resistivity is associated with the decrease of effective scatterers arising from the disappearance of Li antisite defects (Li-Ga) with an activation energy of 0.57+/-0.02 eV at elevated temperatures. These results suggest the existence of an unstable bonding resulting from the relaxation of sp(3)-like Ga bond, at Li-Ga.