Magnetic anisotropy of thin films onM. Kosuth1, V. Popescu1, H. Ebert1 and G. Bayreuther2
1 Physikalische Chemie, Universität München - Butenandtstr. 5-13, D-81377 München, Germany
2 Institut für Experimentelle und Angewandte Physik, Universität Regensburg D-93040 Regensburg, Germany
received 24 May 2005; accepted in final form 4 October 2005
published online 3 November 2005
The magnetic anisotropy of thin films on (001)-oriented GaAs has been investigated using the fully relativistic TB-KKR method of band structure calculation. In line with experimental findings an in-plane anisotropy has been found with the easy axis pointing along the -direction. The theoretical results for the anisotropy energy are reproduced in a semi-quantitative way by the models of Bruno and van der Laan, respectively, which relate to the anisotropy of the spin-orbit-induced orbital magnetic moment.
75.30.Gw - Magnetic anisotropy.
75.70.-i - Magnetic properties of thin films, surfaces, and interfaces.
75.70.Cn - Magnetic properties of interfaces (multilayers, superlattices, heterostructures).
© EDP Sciences 2005