Structural development in Ge-rich Ge-S glasses

被引：34

作者：

Sakaguchi, Y. ^{[1
]}

Tenne, D. A. ^{[2
]}

Mitkova, M. ^{[1
]}

机构：

[1] Boise State Univ, Dept Elect & Comp Engn, Boise, ID 83725 USA

[2] Boise State Univ, Dept Phys, Boise, ID 83725 USA

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2009年 / 355卷 / 37-42期

基金：

美国国家科学基金会;

关键词：

Raman scattering; Chalcogenides; Raman spectroscopy; RAMAN;

D O I：

10.1016/j.jnoncrysol.2009.04.064

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：

The Raman spectra of Ge-S glasses in the Ge-rich region from Ge 33% to 46% have been investigated in order to know the structural development of the network glasses. From the detailed curve fits, we have found that there is an unassigned peak at 410 cm(-1) and it becomes larger with increasing Ge composition. To clarify the structural origin of the peak. we virtually constructed the atomic arrangement of the glassy state starting from the crystalline state through the liquid state and changed the composition gradually depleting the medium in sulfur. From the consideration of the structural modeling and the atomic orbital theory, we suggest that single Ge-S chain is a probable structural origin of the peak. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1792 / 1796

页数：5

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