RELAXATION-TIME SPECTRUM IN GLASSY STATES

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/39250

Title:	RELAXATION-TIME SPECTRUM IN GLASSY STATES
Authors:	LAI,PY
Contributors:	物理研究所
Keywords:	DYNAMICS
Date:	1995
Issue Date:	2010-07-08 14:09:45 (UTC+8)
Publisher:	中央大學
Abstract:	The spectrum for the distribution of the relaxation times that leads to the universally observed Kohlraush law, or stretched exponential relaxation exp(-(t/tau(0))(alpha)) (0 < alpha < 1), for the time correlation function in glassy systems, is calculated. For alpha = 1/2, we obtain explicitly the distribution of the relaxation spectrum. For general values of ct, all the moments of the distribution are computed explicitly. We find that for alpha < 1 the distribution has a broad spectrum with the width of the distribution and the average relaxation time diverges over tens of orders of magnitude as alpha becomes close to 0. The plausible connections with the Vogel-Fulcher and Arrhenius laws are also discussed.
Relation:	CHINESE JOURNAL OF PHYSICS
Appears in Collections:	[Graduate Institute of Physics] journal & Dissertation

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