Multiple acoustic and optical phonon-assisted hopping in oxide glasses containing transition metal ions

被引：8
|
作者：
Barczynski, Ryszard J. [1 ]
机构：
[1] Gdansk Tech Univ, Fac Appl Phys & Math, PL-80952 Gdansk, Poland
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2006年 / 352卷 / 40-41期
关键词：
phonons; conductivity; oxide glasses;
D O I：
10.1016/j.jnoncrysol.2006.07.014
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：
Oxide glasses containing transition metal ions usually exhibit electrical conductivity due to polaron hopping. An interpretation of d/c conductivity data in 50P2O(5)50V(2)O(5), 40P(2)O(5)60V(2)O(5), 50P(2)O(5)50FeO, and 50TeO(2)40V(2)O(5)10Fe(2)O(3) semiconducting oxide glasses is attempted by fitting the Gorhan-Bergeron and Emin model parameters. Their model is much more general than those usually employed to interpret experimental electrical conductivity data and takes into account multiphonon interactions with optical as well as acoustic phonons. The Holstein criterion of non-adiabatic hopping is verified as well. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：4229 / 4231
页数：3
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