MESOSCOPIC RELAXATION NEAR GLASS-TRANSITION SINGULARITIES

被引：8
|
作者：
GOTZE, W
SJOGREN, L
机构：
[1] MAX PLANCK INST PHYS & ASTROPHYS,D-80805 MUNICH,GERMANY
[2] CHALMERS TEKNISKA HOGSKOLA,INST TEORET FYS,S-41296 GOTHENBURG,SWEDEN
[3] GOTHENBURG UNIV,S-41296 GOTHENBURG,SWEDEN
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 1994年 / 172卷 / pt 1期
关键词：
D O I：
10.1016/0022-3093(94)90412-X
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 mesoscopic relaxation in supercooled liquids for temperatures near the crossover temperature, T-c, is described within the mode coupling theory by a two-parameter scaling law. It deals with the interplay of the cage effect and phonon assisted hopping events. The dynamics for frequencies above the alpha-relaxation rate and below the microscopic excitation band are characterized by two relevant control parameters. The various features of the susceptibility spectra and relaxation curves are discussed.
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页码：16 / 25
页数：10
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