Dresden 2009 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 5: Electron Theory of Magnetism

MA 5.1: Vortrag

Montag, 23. März 2009, 11:00–11:15, HSZ 103

Ab initio calculation of the full anti-symmetric conductivity tensor for magnetically ordered systems — •Stephan Lowitzer, Diemo Ködderitzsch, and Hubert Ebert — Department Chemie und Biochemie, LMU München, Butenandtstraße 11, 81377 München

The ab initio calculation of the full anti-symmetric conductivity tensor for magnetically ordered systems is up to now a very difficult task. We present the first results of a recent investigation on the transition metal alloys Fe_1−xNi_x and Co_1−xPd_x. For these we employed the fully relativistic Korringa-Kohn-Rostoker (KKR) band structure method in conjunction with the coherent potential approximation (CPA) alloy theory. The calculation of the conductivity tensor is based on the expressions by Středa and its extension by Crépieux and Bruno, that contain the Kubo-Greenwood expression for the symmetric conductivity tensor as a special case.