Anharmonic thermal vibrations in CdSe

被引：1
|
作者：
Dalba, G
Diop, D
Fornasini, P
Grisenti, R
Pasqualini, D
Rocca, F
Traverse, A
机构：
[1] UNIV DAKAR, DEPT PHYS, DAKAR, SENEGAL
[2] CTR CNR, ITC, CEFSA, I-38050 POVO, ITALY
[3] LURE, F-91405 ORSAY, FRANCE
来源：
JOURNAL DE PHYSIQUE IV | 1997年 / 7卷 / C2期
关键词：
D O I：
10.1051/jp4/1997179
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
EXAFS measurements have been done at the K edge of Se in bulk CdSe, in the temperature range 20 to 300 K and analyzed by the cumulant method. The anharmonicity of the effective pair potential is monitored by the regular growth with temperature of 3rd and 4th cumulants. The first order anharmonic contribution to the MSRD has been calculated. An estimate of the sensitivity of EXAFS to thermal expansion has been attempted taking into account the effect of thermal vibrations normal to the bond direction.
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页码：237 / 238
页数：2
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