The random field critical concentration in dilute antiferromagnets

Details The random field critical concentration in dilute antiferromagnets The random field critical concentration in dilute antiferromagnets

2000-09-04

arxiv.org/abs/cond-mat/0009049v1

J. Appl. Phys. 87, 7049 (2000)

Physics

Condensed Matter

Disordered Systems and Neural Networks

9 pages, 3 figures

Scientific paper

10.1063/1.372927

Monte Carlo techniques are used to investigate the equilibrium threshold concentration, xe, in the dilute anisotropic antiferromagnet Fe(x)Zn(1-x)F2 in an applied magnetic field, considered to be an ideal random-field Ising model system. Above xe equilibrium behavior is observed whereas below xe metastability and domain formation dominate. Monte Carlo results agree very well with experimental data obtained using this system.

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