Magnetic structure and anisotropy in Fe/Cu(001) over- and interlayers with antiferromagnetic interlayer coupling

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Abstract
A first-principles study of the ground state and the magnetic anisotropy of antiferromagnetic fcc Fe/Cu(001) over- and interlayers is presented using the fully relativistic spin-polarized screened Korringa-Kohn-Rostoker method. It is shown that the formation of the antiferromagnetic ground state is highly sensitive to the atomic volume (lattice spacing). Contrary to a previous study of the ferromagnetic state, it is found that for all considered cases, namely up to seven layers of Fe, the magnetization is oriented along the surface normal.