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Regensburg 2007 – scientific programme

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MA: Fachverband Magnetismus

MA 4: Electron Theory of Magnetism

MA 4.5: Talk

Monday, March 26, 2007, 11:15–11:30, H23

Temperature dependent magnetic properties of low-dimensional systems — •Svetlana Polesya1, Sergey Mankovsky1, Voicu Popescu2, and Hubert Ebert11Dept. Chemie und Biochemie, Universität München, Butenandtstr. 5-13,
D-81377 München, Germany — 2Max-Planck-Institut für Metallforschung Abt. Schütz, Heisenbergstr. 3, D-70569 Stuttgart, Germany

Temperature dependent magnetic properties of metallic clusters and ultra-thin magnetic films deposited on metallic substrate have been studied on the basis of Heisenberg model using the Monte Carlo simulations as well as Green’s function random-phase approximation. The exchange coupling parameters were obtained on the basis of calculations of electronic structure performed within the KKR Green’s functions method.

We studied the dependence of the Curie temperature of ultra-thin magnetic films of 3d transition metals on the thickness of these films. The influence of magnetic anisotropy and inter-diffusion at the interface on the temperature dependent magnetic properties of films were studied as well. The effect of covering layers of non-magnetic metals having different thickness on the anisotropy in magnetic films as well as on the Curie temperature have been investigated.

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