PRESSURE-INDUCED PHONON SOFTENING AND STRUCTURAL PHASE-TRANSITIONS INCS2MOS4

Authors
LORENZ B ORGZALL I DORHOUT PK RAYMOND CC HOCHHEIMER HD
Citation
B. Lorenz et al., PRESSURE-INDUCED PHONON SOFTENING AND STRUCTURAL PHASE-TRANSITIONS INCS2MOS4, Solid state communications, 97(6), 1996, pp. 535-538
Citations number
7
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
97
Issue
6
Year of publication
1996
Pages
535 - 538
Database
ISI
SICI code
0038-1098(1996)97:6<535:PPSASP>2.0.ZU;2-W
Abstract
We report the results of a Raman study on Cs2MoS4 under hydrostatic pr essures up to 12 GPa. Two successive phase transitions are observed at 8.0 and 9.7 GPa, respectively. A low frequency phonon mode with a neg ative pressure shift is seen in the low pressure phase. The results ar e discussed within the framework of structural phase transitions drive n by a soft phonon.