Issue |
Europhys. Lett.
Volume 40, Number 2, October II 1997
|
|
---|---|---|
Page(s) | 171 - 176 | |
Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
DOI | https://doi.org/10.1209/epl/i1997-00441-9 | |
Published online | 01 September 2002 |
Strong spin-dependent electron correlation effects in photoemission from itinerant magnets
1
Synchrotron Radiation Source, Daresbury Laboratory, Warrington WA4 4AD,
UK
2
Institut für Angewandte Physik, Heinrich-Heine-Universität, 40225 Düsseldorf,
Germany
3
European Synchrotron Radiation Facility, BP. 220, F-38043 Grenoble, France
Received:
19
June
1997
Accepted:
9
September
1997
The Fe 2p photoemission of ferromagnetic iron shows a dichroism
which indicates a strong difference in hybridization for spin-up and spin-down
electrons. In contrast, the dichroism of the localized Mn surface alloys
reveals intense unscreened satellite structure. The spin polarization of
the core hole is quantified using the dichroism in the Fe Auger
spectrum measured with the light helicity vector perpendicular to the magnetization
direction. The observations in the 3d metals are in strong contradiction
with the expectations from an independent-particle model.
PACS: 71.70.-d – Level splitting and interactions / 75.25.+z – Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source X-ray scattering, etc.) / 78.20.Ls – Magnetooptical effects
© EDP Sciences, 1997
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