Estimation of the magnetic electron-density distribution by RXMS at the electronic transition in absorption edge

Yuhei Kaneko, Maki Okube, Satoshi Sasaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Electron-density analysis has been developed to make use of the intensity difference in the resonant X-ray magnetic scattering (RXMS) between left- and right-circular polarizations. The magnetic electron density was obtained at the electronic transition energy, E=7.1082keV in the Fe K pre-edge by using the difference-Fourier synthesis. Difference peaks due to magnetic electrons of Fe3O4 appeared in the difference-Fourier maps, where Fe ions in the B site have a pair of positive peaks of 0.36e/Å3 in height at a distance of 0.63 Å from the center. The magnetic electron densities are caused by magnetic unpaired 3d electrons in the FeO6 octahedron, where the pre-edge peak is prohibited by the selection rule in the dipole transition with the Oh symmetry. Thus, it has led to the contribution from the quadrupole transition or the hybridization related to the A-O-B superexchange interaction among neighboring ions.

Original languageEnglish
Title of host publicationSRI 2009 - The 10th International Conference on Synchrotron Radiation Instrumentation
Pages883-886
Number of pages4
Volume1234
DOIs
Publication statusPublished - 2010 Aug 3
Externally publishedYes
Event10th International Conference on Synchrotron Radiation Instrumentation, SRI 2009 - Melbourne, VIC, Australia
Duration: 2009 Sep 272009 Oct 2

Other

Other10th International Conference on Synchrotron Radiation Instrumentation, SRI 2009
Country/TerritoryAustralia
CityMelbourne, VIC
Period09/9/2709/10/2

Keywords

  • FeO
  • magnetic electron density
  • magnetite
  • resonant x-ray magnetic scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Estimation of the magnetic electron-density distribution by RXMS at the electronic transition in absorption edge'. Together they form a unique fingerprint.

Cite this