Real-space multiple-scattering theory of XMCD including spin-orbit interaction in scattering process

16th International Conference on X-ray Absorption Fine Structure

Koide, Akihiro^1,2 ; Niki, Kaori^1 ; Sakai, Seiji^2 ; Fujikawa, Takashi^1

Graduate School of Advanced Integration Science, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba

263-8522, Japan^1

Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-Shirane, Tokai, Naka

319-1195, Japan^2

关键词: Fe K-edge;    Light elements;    Magnetic atoms;    Multiple-scattering theory;    Numerical calculation;    Real-space;    Scattering process;    Spin orbit interactions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/712/1/012010/pdf
DOI  :  10.1088/1742-6596/712/1/012010

来源: IOP

【 摘 要 】

The effects of the spin-orbit interaction on surrounding atoms for XMCD spectra are studied by a real-space multiple-scattering theory. The present numerical calculation for Fe K-edge XMCD spectra from BCC iron demonstrates the importance of the spin-orbit interaction on scattering atoms, which has been disregarded in previous works. These effects will be inevitable for K-edge XMCD analyses of light elements surrounded by heavy magnetic atoms.