RAMAN-SPECTRA OF BLUE BRONZE RB0.3MOO3

被引:9
|
作者
MASSA, NE
机构
[1] NATL UNIV LA PLATA,DEPT QUIM,RA-1900 LA PLATA,ARGENTINA
[2] NATL UNIV LA PLATA,FAC CIENCIAS EXACTAS,DEPT FIS,RA-1900 LA PLATA,ARGENTINA
[3] UNIV SHERBROOKE,CTR RECH PHYS SOLIDE,SHERBROOKE J1K 2R1,QUEBEC,CANADA
关键词
D O I
10.1016/0038-1098(90)90631-K
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Temperature dependent Raman spectra of quasi-one-dimensional blue bronze Rb0.3MoO3 are reported. Similarly to what it was found by Travaglini et al. (Solid State Commun. 45, 289, 1983) in K0.3MoO3, a low temperature-low frequency strongly temperature dependent band is assigned to the amplitude mode of the charge density wave. In addition, the relevant infrared data are reviewed. A Raman weighted one-dimensional phonon density of states found above mid-gap energies is traced to the symmetric stretching-breathing mode. It suggests a zone center branch softening of at least 147 cm-1. © 1990.
引用
收藏
页码:805 / 808
页数:4
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