ANOMALOUS RELAXATION IN A FRACTAL-TIME RANDOM-WALK MODEL

Authors
GOMI S YONEZAWA F
Citation
S. Gomi et F. Yonezawa, ANOMALOUS RELAXATION IN A FRACTAL-TIME RANDOM-WALK MODEL, Journal of non-crystalline solids, 193, 1995, pp. 411-414
Citations number
16
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of non-crystalline solids → ACNP
ISSN journal
00223093
Volume
193
Year of publication
1995
Pages
411 - 414
Database
ISI
SICI code
0022-3093(1995)193:<411:ARIAFR>2.0.ZU;2-X
Abstract
Structural relaxation is studied in a fractal-time random walk model i n which the waiting time distribution is given by the power law t(-1-a ). By theoretical analysis and Monte Carlo simulations, it is found th at the relaxation becomes anomalous for the case of a < 1, where the c omplex susceptibility is described by the Cole-Cole form. On the other hand, the normal Debye-type relaxation is observed for a > 1.