Many-body Green's function theory for thin ferromagnetic anisotropic Heisenberg films: treatment of the exchange anisotropy
Hahn-Meitner-Institut Berlin, Glienicker Strasse 100, 14109 Berlin,
Corresponding author: a email@example.com
Published online: 7 May 2003
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.
PACS: 75.10.Jm – Quantized spin models / 75.30.Ds – Spin waves / 75.70.Ak – Magnetic properties of monolayers and thin films
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003