Raman scattering study of antimony-based skutterudites

被引:76
|
作者
Nolas, GS
Slack, GA
Caillat, T
Meisner, GP
机构
[1] CALTECH,JET PROP LAB,PASADENA,CA 91109
[2] GM CORP,CTR RES & DEV,PHYS & PHYS CHEM DEPT,WARREN,MI 48090
关键词
D O I
10.1063/1.361132
中图分类号
O59 [应用物理学];
学科分类号
摘要
Raman spectra of single-crystal CoSb3 and RhSb3 and of polycrystalline IrSb3 have been studied. We have also studied four different polycrystalline-filled skutterudite samples, Ir4LaGe3Sb9, Ir4NdGe3Sb9, Ir4SmGe3Sb9, and Fe4CeSb12, where rare-earth ions occupy the voids in the skutterudite structure. These void-filling ions interact with some of the lattice vibrations in this structure and produce a shift and broadening of the observed lines. The most prominent lines in all of the samples are the Sb-4 ring-breathing modes. (C) 1996 American Institute of Physics.
引用
收藏
页码:2622 / 2626
页数:5
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