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Article Dans Une Revue Journal of Applied Physics Année : 2009

Magnetization reversal in amorphous Fe/Dy multilayers: a Monte Carlo study

Etienne Talbot
Denis Ledue

Résumé

The Monte Carlo method in the canonical ensemble is used to investigate magnetization reversal in amorphous transition metal - rare earth multilayers. Our study is based on a model containing diluted clusters which exhibit an effective uniaxial anisotropy in competition with random magnetic anisotropy in the matrix. We simulate hysteresis loops for an abrupt profile and a diffuse one obtained from atom probe tomography analyses. Our results evidence that the atom probe tomography profile favors perpendicular magnetic anisotropy in agreement with magnetic measurements. Moreover, the hysteresis loops calculated at several temperatures qualitatively agree with the experimental ones.
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Dates et versions

hal-00437360 , version 1 (30-11-2009)

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Etienne Talbot, Denis Ledue, Pierre-Emmanuel Berche. Magnetization reversal in amorphous Fe/Dy multilayers: a Monte Carlo study. Journal of Applied Physics, 2009, 106, pp.023901. ⟨10.1063/1.3157929⟩. ⟨hal-00437360⟩
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