Phys. Rev. B 62, 11316–11319 (2000)Magnetization on rough ferromagnetic surfacesReceived 10 February 2000; published in the issue dated 1 November 2000 Using Ising-model Monte Carlo simulations, we show a strong dependence of surface magnetization on surface roughness. On ferromagnetic surfaces with spin-exchange coupling larger than that of the bulk, the surface magnetic ordering temperature decreases toward the bulk Curie temperature with increasing roughness. For surfaces with spin-exchange coupling smaller than that of the bulk, a crossover behavior occurs: at low temperature, the surface magnetization decreases with increasing roughness; at high temperature, the reverse is true. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.62.11316
DOI:
10.1103/PhysRevB.62.11316
PACS:
75.30.Pd, 75.50.Cc, 75.10.Hk
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