RAMAN AND INFRARED-SPECTRA OF SOME CHROMIUM NASICON-TYPE MATERIALS - SHORT-RANGE DISORDER CHARACTERIZATION

被引:58
|
作者
BARJ, M
LUCAZEAU, G
DELMAS, C
机构
[1] UNIV PARIS 13,INGN MAT & HAUTES PRESS LAB,CNRS,UP 1311,F-93430 VILLETANEUSE,FRANCE
[2] UNIV BORDEAUX 1,CNRS,CHIM SOLIDE LAB,F-33405 TALENCE,FRANCE
[3] ECOLE NATL SUPER ELECTROCHIM & ELECTROMET GR,ION & ELECTROCHIM SOLIDE,F-38402 ST MARTIN DHERES,FRANCE
关键词
D O I
10.1016/0022-4596(92)90164-Q
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The infrared and Raman spectra of the Nasicon-type chromium systems are found to be very sensitive to the composition and to the nature of the metallic ions. The frequency shift of the infrared active modes involving the metallic ions is correlated to the modification of the crystal field around these ions. The static short-range disorder, particularly characterized from the Raman spectra, is essentially interpreted in terms of Na+ ion site occupation change vs the composition and the temperature. © 1992.
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页码:141 / 150
页数:10
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