Domain Growth in Random Magnets

Details Domain Growth in Random Magnets Domain Growth in Random Magnets

2004-04-08

arxiv.org/abs/cond-mat/0404207v2

Europhys. Lett., 68(6), 881 (2004)

Physics

Condensed Matter

Disordered Systems and Neural Networks

7 pages, 4 figures

Scientific paper

10.1209/epl/i2004-10276-4

We study the kinetics of domain growth in ferromagnets with random exchange interactions. We present detailed Monte Carlo results for the nonconserved random-bond Ising model, which are consistent with power-law growth with a variable exponent. These results are interpreted in the context of disorder barriers with a logarithmic dependence on the domain size. Further, we clarify the implications of logarithmic barriers for both nonconserved and conserved domain growth.

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