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Szunyogh, L., Zabloudil, J., Weinberger, P., Offi, F., Kuch, W., Kirschner, J.

Magnetic structure of thin films of FexMn1−x on Cu(100)/Co by the fully relativistic screened KKR method
Physical Review B 67, pp 054418/1-9 (2003)
The fully relativistic screened Korringa-Kohn-Rostoker method is used to discuss the electronic structure and magnetic properties of FexMn1−x overlayers on Cu(100)/Co. It is found that in this system, energetically low-lying antiferromagnetic configurations most likely are the cause for the experimentally observed antiferromagnetism. In all cases investigated, the ground state corresponds to the (in-plane) ferromagnetic configuration; the FexMn1−x overlayers do carry a small (concentration averaged) magnetic moment. In very good agreement with experiment, two overlayer thicknesses, namely, at 3 and 10 ML, are traced, at which either this moment nearly vanishes (3 ML) or different types of antiferromagnetic configurations apply (10 ML).