MAGNETIC DICHROISM UNDER EXCITATION BY UNPOLARIZED RADIATION

A. Fanelsa, R. Schellenberg, F. U. Hillebrecht and E. Kisker
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A. Fanelsa: Institut für Angewandte Physik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
R. Schellenberg: Institut für Angewandte Physik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
F. U. Hillebrecht: Institut für Angewandte Physik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
E. Kisker: Institut für Angewandte Physik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany

Surface Review and Letters (SRL), 1997, vol. 04, issue 05, 919-922

Abstract: Magnetic dichroism has been observed in the angular distribution of p-core level photoemission spectra excited from crystalline ferromagnets by unpolarized X-rays. The angular dependence of the angular and energy-resolved photoemission intensity was recorded as a function of the emission direction with respect to the crystal, revealing a strong variation of the magnetic dichroism with emission angle due to photoelectron diffraction. This variation is particularly strong around the forward scattering peaks, including sign reversals close to these directions. The results demonstrate that any standard X-ray photoelectron spectroscopy apparatus possesses the potential for combined analysis of surface magnetic structure and geometric structure in a chemically specific way.

Date: 1997
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DOI: 10.1142/S0218625X97001048

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