Anomalous diffusion near structural-glass transformations

Authors
Kokshenev, VB Sullivan, NS
Citation
Vb. Kokshenev et Ns. Sullivan, Anomalous diffusion near structural-glass transformations, PHYS LETT A, 280(1-2), 2001, pp. 97-103
Citations number
40
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
03759601 → ACNP
Volume
280
Issue
1-2
Year of publication
2001
Pages
97 - 103
Database
ISI
SICI code
0375-9601(20010212)280:1-2<97:ADNST>2.0.ZU;2-5
Abstract
A new insight into the relaxation observed in dynamical spectra near struct ural-glass transformations is given. The following restricted-diffusion uni versal mechanisms are established: in polymers alpha -relaxation is driven by subdiffusion controlled by random fields, and in liquids beta -relaxatio n is realized through long-time-waiting random jumps. (C) 2001 Elsevier sci ence B.V. All rights reserved.