CRYSTAL ANHARMONICITY IN LI(H,D) AND NA(H,D) SYSTEMS

Citation
Akma. Islam et al., CRYSTAL ANHARMONICITY IN LI(H,D) AND NA(H,D) SYSTEMS, Physica status solidi. b, Basic research, 183(1), 1994, pp. 117-129
Citations number
45
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
03701972
Volume
183
Issue
1
Year of publication
1994
Pages
117 - 129
Database
ISI
SICI code
0370-1972(1994)183:1<117:CAILAN>2.0.ZU;2-D
Abstract
The reliability of a recently developed potential model is tested by e xtending the study to various anharmonic properties, e.g., third and f ourth-order elastic constants, Gruneisen parameters, and the pressure derivatives of second-order elastic constants of hydrides and deuterid es of lithium and sodium. A comparison of the calculated properties wi th the limited experimental results and other theoretical estimates gi ves an indication of the applicability of the derived potential in the study of crystal anharmonicity. However, the need for further experim ental data is stressed in order to judge clearly the reliability of th e present calculations for all the compounds.