LATTICE-DYNAMICS OF CUBIC MERCURY SULFIDE

Authors
SZUSZKIEWICZ W DYBKO K DYNOWSKA E GORECKA J WITKOWSKA B HENNION B
Citation
W. Szuszkiewicz et al., LATTICE-DYNAMICS OF CUBIC MERCURY SULFIDE, Acta Physica Polonica. A, 90(5), 1996, pp. 947-950
Citations number
16
Categorie Soggetti
Physics
Journal title
Acta Physica Polonica. A → ACNP
ISSN journal
05874246
Volume
90
Issue
5
Year of publication
1996
Pages
947 - 950
Database
ISI
SICI code
0587-4246(1996)90:5<947:LOCMS>2.0.ZU;2-D
Abstract
The acoustic phonon dispersion of mercury sulphide of zinc-blende stru cture (beta-HgS) was studied by inelastic neutron scattering. The meas urements were carried out at 19 K and 295 K on HgS crystals doped with Fe. A slight decrease in phonon frequencies with increasing temperatu re was found, the temperature dependence being the strongest for LA ph onons with [xi, xi, 0] propagation. From acoustic phonon dispersion th e values of selected elastic constants were determined for beta-HgS.