Anomalous Rotational Relaxation: A Fractional Fokker-Planck Equation Approach
arXiv:cond-mat/0410701 · doi:10.1103/PhysRevE.71.046103
Abstract
In this study we obtained analytically relaxation function in terms of rotational correlation functions based on Brownian motion for complex disordered systems in a stochastic framework. We found out that rotational relaxation function has a fractional form for complex disordered systems, which indicates relaxation has non-exponential character obeys to Kohlrausch-William-Watts law, following the Mittag-Leffler decay.
Revtex4, 9 pages. Paper was revised. References added
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