VIBRATIONAL SPECTROSCOPY OF THE C-FORM OF YTTRIUM SESQUIOXIDE

被引:190
|
作者
REPELIN, Y
PROUST, C
HUSSON, E
BENY, JM
机构
[1] UNIV ORLEANS, ESEM, MECAN & PHYS MAT LAB, F-45071 ORLEANS 2, FRANCE
[2] ECOLE CENT PARIS, CHIM PHYS SOLIDE LAB, CNRS, URA453, F-92295 CHATENAY MALABRY, FRANCE
[3] CNRS, CRPHT, F-45071 ORLEANS 2, FRANCE
关键词
D O I
10.1006/jssc.1995.1326
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Infrared and Raman spectra of polycrystalline Y2O3 as well as polarized Raman spectra of Y2O3 single crystals have been measured. A complete assignment of the bands is proposed. A normal coordinate analysis using a generalized valence force field enabled us to fit the observed frequencies with a satisfactory accuracy (3.5%). The calculated force constants are discussed and compared with those of alpha-Al2O3 exhibiting the same atomic coordination. (C) 1995 Academic Press, Inc.
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页码:163 / 169
页数:7
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