Anomalous diffusion in random pores

被引：5
|
作者：
Lee, JC [1 ]
机构：
[1] Univ So Mississippi, Dept Phys, Hattiesburg, MS 39406 USA
来源：
JOURNAL OF CHEMICAL PHYSICS | 1998年 / 108卷 / 06期
关键词：
D O I：
10.1063/1.475654
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Molecular dynamics simulations are performed for binary liquids confined in the pores of Vycor glass. The individual molecular motions are studied by computing F-s, the self-part of the concentration fluctuation autocorrelation function. The results for F-s(q,t) show that the diffusion is anomalous as its relaxation rate does not follow the usual q(2) dependence on the probing wave vector q. This is explained as a confining effect of the glass walls. (C) 1998 American Institute of Physics.
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收藏
页码：2265 / 2268
页数：4
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