PHONONS IN CUGEO3 STUDIED USING POLARIZED FAR-INFRARED AND RAMAN-SCATTERING SPECTROSCOPIES

Authors
POPOVIC ZV DEVIC SD POPOV VN DHALENNE G REVCOLEVSCHI A
Citation
Zv. Popovic et al., PHONONS IN CUGEO3 STUDIED USING POLARIZED FAR-INFRARED AND RAMAN-SCATTERING SPECTROSCOPIES, Physical review. B, Condensed matter, 52(6), 1995, pp. 4185-4190
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
52
Issue
6
Year of publication
1995
Pages
4185 - 4190
Database
ISI
SICI code
0163-1829(1995)52:6<4185:PICSUP>2.0.ZU;2-#
Abstract
Optical phonons in CuGeO3 were studied using polarized far-infrared an d Raman-scattering spectroscopies. The frequencies of the infrared-act ive modes are determined using an oscillator-fitting procedure of refl ectivity data. All infrared and Raman active modes, predicted by facto r-group analysis, were observed. The assignment of the observed phonon s is given according to Cartesian symmetry coordinates as well as prel iminary lattice dynamical calculations on the basis of a shell model.