Abstract
We propose a mechanism of the magnetic circular X-ray dichroism (MCXD) at the pre-peak of the Fe K-edge in Fe-oxides. It is found that the hybridization between the 3d state and the 4p state of Fe ions at tetrahedral sites through the ligand 2p state is responsible for the weak electric-dipole absorption at the pre-peak while the spin-orbit interaction and the spin polarization in the 3d state play a crucial role in MCXD. The important effects of the configuration interaction as well as of the core hole are discussed in connection with the asymmetric dispersion-type MCXD observed in rare-earth iron garnets and magnetites.
| Original language | English |
|---|---|
| Pages (from-to) | 251-254 |
| Number of pages | 4 |
| Journal | Journal of Electron Spectroscopy and Related Phenomena |
| Volume | 78 |
| DOIs | |
| Publication status | Published - May 1996 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Radiation
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Spectroscopy
- Physical and Theoretical Chemistry