IONIC DIELECTRIC FUNCTION OF ALPHA-AGI BASED UPON HUBBARD-BEEBY THEORY

Authors
TOMOYOSE T YOGI T KOBAYASHI M
Citation
T. Tomoyose et al., IONIC DIELECTRIC FUNCTION OF ALPHA-AGI BASED UPON HUBBARD-BEEBY THEORY, Journal of the Physical Society of Japan, 64(7), 1995, pp. 2465-2469
Citations number
16
Categorie Soggetti
Physics
Journal title
Journal of the Physical Society of Japan → ACNP
ISSN journal
00319015
Volume
64
Issue
7
Year of publication
1995
Pages
2465 - 2469
Database
ISI
SICI code
0031-9015(1995)64:7<2465:IDFOAB>2.0.ZU;2-L
Abstract
A frequency and wave vector dependent dielectric function of alpha-AgI is studied by using a phonon description based on a modified Hubbard- Beeby theory. The frequency dependent dielectric function is character ized by a main LO phonon peak and a sub LA phonon peak. The frequency spectrum for the dielectric function is consistent with those for the ac conductivity and the charge density dynamical structure factor of a lpha-AgI.