Many-body Green's function theory for thin ferromagnetic anisotropic Heisenberg films: treatment of the exchange anisotropy

Abstract

The many-body Green's function theory developed in our previous work for treating the reorientation of the magnetization of thin ferromagnetic films is extended to include the exchange anisotropy. This leads to additional momentum dependencies which require some non-trivial changes in the formalism. The theory is developed for arbitrary spin values S and for multilayers. The effects of the exchange anisotropy and the single-ion anisotropy, which was treated in our earlier work, on the magnetic properties of thin ferromagnetic films are compared.

24 pages, 7 figures, accepted for publication in Eur. Phys. J. B

Cited by in corpus (12)

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• Anisotropic susceptibilities of thin ferromagnetic films within many-body Green's function theory
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• Coupled ferro-antiferromagnetic Heisenberg bilayers investigated by many-body Green's function theory
• Green's function theory for spin-1/2 ferromagnets with an easy-plane exchange anisotropy
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