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Hamburg 2001 – scientific programme

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AM: Magnetismus

AM 9: Poster: Magnetowid. (1-17), Dü. Schichten (18-34), Oberfl
ächenmag. (35,36), Mikr. Methoden (37-45), Mikromag. (46-58), Phasenüberg. (59-77), Spektroskop. (78-91), Nanokr.Mat.(92-96), Anisotrop. (97-101), Schmelzen(102-104),Sonst/postdeadl.(105-109)

AM 9.78: Poster

Tuesday, March 27, 2001, 14:45–19:00, Foyer S 3

Theoretical description of the x-ray magneto-optical properties — •Ján Minár and Hubert Ebert — Physik. Chemie, Universität München,Butenandtstr. 5-13,81377 München

During the last years the investigation of the magneto-optical effects in the x-ray regime has has been used more and more for the investigation of magnetic and electronic structure of the magnetic materials. As for the optical regime of light, all magneto-optical properties in the x-ray regime are closely related to the optical conductivity. Our method for the calculation of the frequency dependent optical conductivity allows therefore a rather detailed discussion of all experimentally observable magneto-optical phenomena. It is based on the fully relativistic Green’s function method (KKR-GF). Within our approach we are able to deal not only with ordered systems, but also with disordered ones, as well as, multilayer and surface layer systems.

We present results of calculations for the Faraday and Kerr effect for bulk Fe, Co and Ni, as well as for disordered alloys, which are, as far as possible, compared with the results of other authors and the experiment.

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