Microstructural study of (Ag2S)x(GeS2)100-x and (Ag2S)x(GeS)60(GeS2)40-x glasses

被引：0
|
作者：
Piarristeguy, A. A. [1 ]
Ramonda, M. [2 ]
Ribes, M. [1 ]
Pradel, A. [1 ]
机构：
[1] Univ Montpellier 2, Inst Charles Gerhardt Montpellier, Equipe Chalcogenures & Verres, CC1503,Pl E Bataillon, F-34095 Montpellier 5, France
[2] Univ Montpellier 2, LMCP, F-34095 Montpellier, France
来源：
INTERNATIONAL CONFERENCE ON ADVANCES IN CONDENSED AND NANO MATERIALS (ICACNM-2011) | 2011年 / 1393卷
关键词：
Ag chalcogenide glasses; phase separation; Near field microscopy; conductivity; CHALCOGENIDE GLASSES; PERCOLATION TRANSITION;
D O I：
10.1063/1.3653595
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The combined investigation of electrical conductivity by complex impedance spectroscopy and microstructure by Electric Field Microscopy (EFM) helped us to characterize the electrical heterogeneousness existing in several Ag-Ge-S glasses. While the (Ag2S)(x)(GeS)(60)(GeS2)(40-x) glasses were shown to be homogeneous, (Ag2S)(x)(GeS2)(100-x) glasses show heterogeneousness. Such heterogeneousness is the electrical signature of a phase separation existing in the glasses. The obtained data helped in understanding the difference of 4-5 orders of magnitude in the conductivity of the system.
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页数：4
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