TY - GEN
T1 - Estimation of the magnetic electron-density distribution by RXMS at the electronic transition in absorption edge
AU - Kaneko, Yuhei
AU - Okube, Maki
AU - Sasaki, Satoshi
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
KW - FeO
KW - magnetic electron density
KW - magnetite
KW - resonant x-ray magnetic scattering
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U2 - 10.1063/1.3463357
DO - 10.1063/1.3463357
M3 - Conference contribution
AN - SCOPUS:77955034121
SN - 9780735407824
T3 - AIP Conference Proceedings
SP - 883
EP - 886
BT - SRI 2009 - The 10th International Conference on Synchrotron Radiation Instrumentation
T2 - 10th International Conference on Synchrotron Radiation Instrumentation, SRI 2009
Y2 - 27 September 2009 through 2 October 2009
ER -