CALCULATION OF THE RESONANT MAGNETO-OPTICAL PROPERTIES OF TRANSITION METALS AND DISORDERED ALLOYS IN THE X-RAY REGIME

J. Minár () and H. Ebert
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J. Minár: Department of Chemistry/Physical Chemistry, University of Munich, Butenandtstr. 5-13, D-81377 München, Germany
H. Ebert: Department of Chemistry/Physical Chemistry, University of Munich, Butenandtstr. 5-13, D-81377 München, Germany

Surface Review and Letters (SRL), 2002, vol. 09, issue 02, 1179-1183

Abstract: A version of the Kubo formula is presented, which allows one to calculate the resonant magneto-optical properties in the X-ray regime for arbitrary materials. This is achieved by representing the underlying electronic structure in terms of the electronic Green's function. Calculating the Green's function within the framework of spin-polarized relativistic multiple scattering theory (SPR-KKR) in particular gives access to spin–orbit-induced resonant magneto-optical properties. Results obtained for the Faraday effect and for the magnetic dichroic part of the complex reflective indexnat the K-edge of Co andL2,3-edges of Fe are found in very good agreement with recent experimental findings. The relation ofnwith the local magnetic moment is discussed on the basis of the calculated results for theL3-edges of Pt infcc-CoxPt1-xdisordered alloy.

Date: 2002
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DOI: 10.1142/S0218625X02003482

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