Universality class for domain growth in random magnets
- 7 October 1991
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 24 (19) , L1185-L1191
- https://doi.org/10.1088/0305-4470/24/19/010
Abstract
A 2D Ising model with random ferromagnetic bonds is studied by Monte Carlo simulation following a quench from T= infinity to T(Tc. The domain size grows as L(t) approximately (In t/to)x at late times. The data are consistent with the theoretical prediction chi =4. The exponent, defined by (Si(0)Si(t) approximately L(t)-, and the scaling functions for the spatial correlations, are very close to those of the pure system, suggesting that pure and random systems belong to the same universality class.Keywords
This publication has 32 references indexed in Scilit:
- Theory of first-order phase transitionsReports on Progress in Physics, 1987
- A dynamic scaling assumption for phase separationAdvances in Physics, 1985
- Temperature dependence of the dynamics of random interfacesPhysical Review B, 1983
- Kinetics of ordering in two dimensions. I. Model systemsPhysical Review B, 1983
- Development of order in a symmetric unstable systemPhysical Review B, 1983
- Temperature Dependence of Domain Kinetics in Two DimensionsPhysical Review Letters, 1983
- Universal Scaling in the Motion of Random InterfacesPhysical Review Letters, 1982
- Kinetics of an Order-Disorder TransitionPhysical Review Letters, 1980
- A microscopic theory for antiphase boundary motion and its application to antiphase domain coarseningActa Metallurgica, 1979
- Growth of fluctuations in quenched time-dependent Ginzburg-Landau model systemsPhysical Review A, 1978