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Article Dans Une Revue Journal of Magnetism and Magnetic Materials Année : 2007

Magnetic properties of Fe/Dy multilayers: a Monte Carlo investigation

Etienne Talbot
Denis Ledue
Renaud Patte

Résumé

We investigate the magnetic properties of a Heisenberg ferrimagnetic multilayer by using Monte Carlo simulations. The aim of this work is to study the local structural anisotropy model which is a possible origin of the perpendicular magnetic anisotropy in transition metal/rare earth amorphous multilayers. We have considered a face centered cubic lattice where each site is occupied by a classical Heisenberg spin. We have introduced in our model of amorphous multilayers a small fraction of crystallized Fe-Dy nanoclusters with a mean anisotropy axis along the deposition direction. We show that a competition in the energy terms takes place between the mean uniaxial anisotropy of the Dy atoms in the nanoclusters and the random anisotropy of the Dy atoms in the matrix.
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Dates et versions

hal-00085631 , version 1 (13-07-2006)

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Etienne Talbot, Pierre-Emmanuel Berche, Denis Ledue, Renaud Patte. Magnetic properties of Fe/Dy multilayers: a Monte Carlo investigation. Journal of Magnetism and Magnetic Materials, 2007, 316 (2), pp.281-284. ⟨10.1016/j.jmmm.2007.03.182⟩. ⟨hal-00085631⟩
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