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Magnetic reordering in the vicinity of a ferromagnetic/antiferromagnetic interface

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Abstract.

The magnetic arrangement in the vicinity of the interface between a ferromagnet and an antiferromagnet is investigated, in particular its dependence on the exchange couplings and the temperature. Applying a Heisenberg model, both sc(001) and fcc(001) lattices are considered and solved by a mean field approximation. Depending on the parameter values a variety of different magnetic configurations emerge. Usually the subsystem with the larger ordering temperature induces a magnetic order into the other one (magnetic proximity effect). With increasing temperature a reorientation of the magnetic sublattices is obtained. For coupled sc(001) systems both FM and AFM films are disturbed from their collinear magnetic order, hence exhibit a similar behavior. This symmetry is absent for fcc(001) films which, under certain circumstances, may exhibit two different critical temperatures. Analytical results are derived for simple bilayer systems.

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Authors and Affiliations

  1. Institut für Theoretische Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany

    P. J. Jensen

  2. IPCMS – GEMME, Université Louis Pasteur, 23 rue du Loess, 67037, Strasbourg, France

    H. Dreyssé

  3. Facultad de Física, Pontificia Universidad Católica, Casilla 306, Santiago de Chile, 6904411, Chile

    M. Kiwi

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  1. P. J. Jensen
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Correspondence to P. J. Jensen.

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Jensen, P., Dreyssé, H. & Kiwi, M. Magnetic reordering in the vicinity of a ferromagnetic/antiferromagnetic interface. Eur. Phys. J. B 46, 541–551 (2005). https://doi.org/10.1140/epjb/e2005-00287-y

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