Correlation between Meyer-Neldel rule and phase separation in Se98-xZn2Inx chalcogenide glasses

被引：18
|
作者：
Singh, Abhay Kumar [1 ]
Mehta, Neeraj [1 ]
Singh, Kedar [1 ]
机构：
[1] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India
来源：
CURRENT APPLIED PHYSICS | 2009年 / 9卷 / 04期
关键词：
Chalcogenide glasses; Activation energy of crystallization; Amorphous to crystalline phase transition; DSC technique; SB-SE GLASSES; CRYSTALLIZATION KINETICS; THIN-FILMS; OVERLAPPING PHASES; CONDUCTIVITY; PARAMETERS; DEPENDENCE; ALLOY; MODEL; LAW;
D O I：
10.1016/j.cap.2008.07.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present work reports the observation of Meyer-Neldel rule for the thermally activated crystallization of glassy Se98-xZn2Inx (0 <= x <= 10) alloys. We have observed a strong co-relation between the pre-exponential factor K-o of rate constant K(T) of crystallization and activation energy of crystallization E-c in the present case. This indicates the presence of compensation effect for the non-isothermal crystallization process in the present glassy system, which is explained in terms of phase separation of the present alloys due to flaw bonds of these amorphous solids. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：807 / 811
页数：5
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