Spin- and orbital-polarized multiple-scattering theory of magneto-x-ray effects in Fe, Co, and Ni
Journal
Physical Review B - Condensed Matter and Materials Physics
Journal Volume
55
Journal Issue
17
Pages
11619-11628
Date Issued
1997
Author(s)
Abstract
Systematic theoretical studies of various magneto-x-ray effects (Faraday rotation, resonant magnetic x-ray scattering as well as magnetic circular dichroism) at the K and (Formula presented) edges in bcc Fe, fcc, and hcp Co, and fcc Ni have been carried out. Spin- and orbital-polarized multiple-scattering theory is used. It is found that the orbital polarization (correction) significantly increases the orbital moment and the magnitude of the K magnetic circular dichroism and Faraday rotation spectra which are then in reasonable agreement with available experiments. On the other hand, the orbital polarization only slightly affects the spin magnetic moment of all the systems studied and the (Formula presented) magneto-x-ray spectra of Fe and Co. There is an overall agreement in the (Formula presented) magneto-x-ray spectra between the theory and the experiments. However, some differences between the theoretical and experimental magneto-x-ray spectra in between the (Formula presented) and (Formula presented) edges exist especially in Fe and Ni, indicating that one-electron theory is not fully adequate. The fundamental relations between the different magneto-x-ray spectra are emphasized. © 1997 The American Physical Society.
Type
journal article