Naslov
Kinetic glass behavior in a diffusive model

Autori
Čapeta, Davor ; Sunko, Denis K.

Izvornik
Physical Review B (1098-0121) 74 (2006), 22;

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
glass transitions; random models

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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