Kinetic glass behavior in a diffusive model

Čapeta, Davor and Sunko, Denis K. (2006) Kinetic glass behavior in a diffusive model. Physical Review B, 74 (22). pp. 220201-4. ISSN 1098-0121

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Three properties of the Edwards-Anderson model with mobile bonds are investigated which are characteristic of kinetic glasses. First is two-time relaxation in aged systems, where a significant difference is observed between spin and bond autocorrelation functions. The spin subsystem does not show two-time behavior, and the relaxation is stretched exponential. The bond subsystem shows two-time behavior, with the first relaxation nearly exponential and the second similar to the spin one. Second is the two-temperature behavior, which can be tuned by bond dilution through the full range reported in the literature. Third is the rigid-to-floppy transition, identified as a function of bond dilution. Simple Glauber Monte Carlo evolution without extraneous constraints reproduces the behavior of classical kinetic simulations, with the bond (spin) degree of freedom corresponding to configurational (orientational) disorder.

Item Type: Article
Keywords: glass transitions, random models
Date: December 2006
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2006) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Project code: 119256
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 24 May 2014 13:53
Last Modified: 24 May 2014 13:53

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