Regensburg 2002 – wissenschaftliches Programm
MA 15.4: Vortrag
Donnerstag, 14. März 2002, 16:00–16:15, H10
Theoretical description of resonant magneto-optical phenomena in the X-ray regime for surface layer systems — •Jan Minar and Hubert Ebert — Department Chemie / Physikalische Chemie,
Universität München, Butenandstr. 5-13, D-81377 München, Germany
A version of the Kubo-formula is presented, that allows 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 Green’s function. Calculating the Green’s function in the framework of spin-polarised relativistic multiple scattering theory (SPR-KKR) in particular gives access to spin-orbit induced resonant magneto-optical properties . Using the Green’s function formalism allows in a straightforward way to deal with systems without three-dimensional translational symmetry. Two important cases for these are surfaces and disordered alloys. As an example, results of calculations for the X-ray resonant scattering (transverse Kerr effect) in the layered system Fe/Ag will be presented. Recently, Geissler and coworkers , investigated the Pt magnetization profile at a Pt/Co interface, using resonant circular X-ray reflectivity measurements. Corresponding calculations have been performed to support the interpretation of these experimental investigations.
 J. Minar and H. Ebert, Solid State Commun. 118, 383 (2001).
 J. Geissler, E. Goering, M Justen et al., to be published