INFLUENCE OF PHOTOELECTRON DIFFRACTION ON MAGNETIC LINEAR DICHROISM

H. B. Rose, T. Kinoshita, Ch. Roth, F. U. Hillebrecht and E. Kisker
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H. B. Rose: Institut für Angewandte Physik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
T. Kinoshita: Institut für Angewandte Physik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany;
Ch. Roth: 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, 915-918

Abstract: We studied the influence of photoelectron diffraction on magnetic linear dichroism and spin polarization in Co and Fe 3p photoemission excited by linearly polarized synchrotron radiation. We find a strong variation of the magnetic linear dichroism with emission direction. The spin polarization related to the spin–orbit interaction varies in a similar manner. This angular variation closely tracks that of the magnetic dichroism. In contrast, the exchange-induced spin polarization(-12+2)%does not vary appreciably with emission angle. These findings suggest that the main cause for the observed effects is the angular momentum character of the photoelectron wave.

Date: 1997
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DOI: 10.1142/S0218625X97001036

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