Ab-initio calculation of Kerr spectra for semi-infinite systems including multiple reflections and optical interferences
Abstract
Based on Luttinger's formulation the complex optical conductivity tensor is calculated within the framework of the spin-polarized relativistic screened Korringa-Kohn-Rostoker method for layered systems by means of a contour integration technique. For polar geometry and normal incidence ab-initio Kerr spectra of multilayer systems are then obtained by including via a 2x2 matrix technique all multiple reflections between layers and optical interferences in the layers. Applications to Co|Pt5 and Pt3|Co|Pt5 on the top of a semi-infinite fcc-Pt(111) bulk substrate show good qualitative agreement with the experimental spectra, but differ from those obtained by applying the commonly used two-media approach.
Cite
@article{arxiv.cond-mat/0201385,
title = {Ab-initio calculation of Kerr spectra for semi-infinite systems including multiple reflections and optical interferences},
author = {A. Vernes and L. Szunyogh and P. Weinberger},
journal= {arXiv preprint arXiv:cond-mat/0201385},
year = {2009}
}
Comments
32 pages (LaTeX), 5 figures (Encapsulated PostScript), submitted to Phys. Rev. B