Raman scattering under hydrostatic pressure in layered AsI3 crystals

Authors
Saitoh, A Komatsu, T Karasawa, T
Citation
A. Saitoh et al., Raman scattering under hydrostatic pressure in layered AsI3 crystals, PHYS ST S-B, 221(2), 2000, pp. 573-581
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI B-BASIC RESEARCH
ISSN journal
03701972 → ACNP
Volume
221
Issue
2
Year of publication
2000
Pages
573 - 581
Database
ISI
SICI code
0370-1972(200010)221:2<573:RSUHPI>2.0.ZU;2-F
Abstract
The pressure dependence of Raman spectra of Asl; single crystals has been s tudied under hydrostatic pressure up to 2.23 GPa at 77 K by using a diamond anvil cell. The number of Raman lines increased abruptly at a pressure of 1.66 GPa indicating a structural phase transition. Further analysis of the Raman spectra in the high-pressure phase suggests that the new unit cell is made of two nearly identical unit cells of the low-pressure phase.