Vibrational and structural properties of glass and crystalline phases of TeO2

被引:123
|
作者
Noguera, O [1 ]
Merle-Méjean, T [1 ]
Mirgorodsky, AP [1 ]
Smirnov, MB [1 ]
Thomas, P [1 ]
Champarnaud-Mesjard, JC [1 ]
机构
[1] Univ Limoges, Fac Sci & Tech, UMR CNRS 6638, Lab Sci Proc Ceram & Traitements Surface, F-87060 Limoges, France
关键词
D O I
10.1016/j.jnoncrysol.2003.08.052
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
A wide-spread opinion regarding the paratellurite (alpha-TeO2) lattice as a parent structure of TeO2 glass is questioned. Consequently, the Raman and infrared spectra of TeO2 glass are contrasted with those of three crystalline lattices (alpha, beta, gamma) of TeO2 and their vibrational state density distribution functions. Additionally, the data on the crystallization of the liquid and glassy states of TeO2 are considered. As a result, of the known crystalline phases of TeO2, the gamma-phase is proposed as the closest to TeO2 glass. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:50 / 60
页数:11
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