Münster 1999 – wissenschaftliches Programm

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AM: Magnetismus

AM 4: Spektroskopie I

AM 4.9: Vortrag

Montag, 22. März 1999, 17:15–17:30, F4

Magnetic EXAFS Investigations on Fe/Cu and Fe/Co Multilayers — •V. Popescu and H. Ebert — Institut f"ur Physikalische Chemie, Universität M"unchen,Theresienstr. 37, 80333 München

The fully relativistic theory of magnetic EXAFS (MEXAFS) developed recently by the authors, has been applied to several transition metal multilayer systems. For the Fe/Cu and Fe/Co multilayer systems results for the K-edges of Fe, Cu and Co will be presented and compared with experiment. In particular, the changes in the (M)EXAFS spectra, as a direct consequence of the changes in the local magnetic environment, have been investigated. For this purpose, calculations for disordered alloys were performed in addition. In the case of the system Fe/Co only minor differences have been found between the multilayers and the corresponding disordered alloys because of the great similarity of the atom types involved.