FAR-INFRARED ABSORPTION IN AMORPHOUS SB15GEXSE85-X GLASSES

被引：61

作者：

GOYAL, DR ^{[1
]}

MAAN, AS ^{[1
]}

机构：

[1] MAHARSHI DAYANAND UNIV,DEPT PHYS,ROHTAK 124001,HARYANA,INDIA

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1995年 / 183卷 / 1-2期

关键词：

D O I：

10.1016/0022-3093(94)00550-8

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Far-infrared absorption spectra of amorphous Sb15GexSe85-x, (x = 5, 10, 15, 20) have been studied in the spectral range 170-500 cm(-1) at room temperature. The results are interpreted in terms of the vibrations of the isolated molecular units in such a way as to preserve fourfold and twofold coordination for germanium and chalcogen atoms, respectively. The spectra confirm the chain crossing model where Ge and Sb crosslink the chains of Se. The assignment of various absorption bands has been made on the basis of absorption spectra of amorphous Ge-Se alloys.

引用

页码：182 / 185

页数：4

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