中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
ON THE ANOMALOUS DIFFUSION BEHAVIOR IN DISORDERED MEDIA

文献类型:期刊论文

作者K. G. Wang
刊名Physica a-Statistical Mechanics and Its Applications
出版日期1992
卷号182期号:1-2页码:40916
关键词amorphous metals random-walks lattices hydrogen
ISSN号0378-4371
中文摘要A particle diffusing in a disordered medium with a Gaussian distribution of potential well depths is studied. The transition rates are related to the random potentials in the well-known Arrhenius form. A log-normal distribution of transition rates is naturally established. Finally, we show that the behaviour of diffusing particles in the one-dimensional case can be expressed as ln 1/2 approximately (kT/sigma)2(ln t)2, when kT/sigma << 1 (low temperature), where sigma, T and k are the variance of the Gaussian distribution, the absolute temperature and the Boltzmann constant, respectively. When kT/sigma >> 1 (high temperature) the normal type of diffusion behavior is exhibited. The anomalous types of diffusion behavior associated with higher dimensions are also investigated.
原文出处://WOS:A1992HM99800001
公开日期2012-04-14
源URL[http://ir.imr.ac.cn/handle/321006/39306]  
专题金属研究所_中国科学院金属研究所
推荐引用方式
GB/T 7714
K. G. Wang. ON THE ANOMALOUS DIFFUSION BEHAVIOR IN DISORDERED MEDIA[J]. Physica a-Statistical Mechanics and Its Applications,1992,182(1-2):40916.
APA K. G. Wang.(1992).ON THE ANOMALOUS DIFFUSION BEHAVIOR IN DISORDERED MEDIA.Physica a-Statistical Mechanics and Its Applications,182(1-2),40916.
MLA K. G. Wang."ON THE ANOMALOUS DIFFUSION BEHAVIOR IN DISORDERED MEDIA".Physica a-Statistical Mechanics and Its Applications 182.1-2(1992):40916.

入库方式: OAI收割

来源:金属研究所

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