| Numéro |
J. Phys. IV France
Volume 04, Numéro C9, Novembre 1994
Proceedings of the European Symposium on Frontiers in Science and Technology with Synchrotron Radiation
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|---|---|---|
| Page(s) | C9-175 - C9-178 | |
| DOI | https://doi.org/10.1051/jp4:1994929 | |
Proceedings of the European Symposium on Frontiers in Science and Technology with Synchrotron Radiation
J. Phys. IV France 04 (1994) C9-175-C9-178
DOI: 10.1051/jp4:1994929
1 Laboratorium für Festkörperphysik, ETH-Zurich, 8093 Zurich, Switzerland
2 Laboratoire pour l'Utilisation du Rayonnement Electromagnétique, CNRS-CEA-MEN, 91405 Orsay, France
© EDP Sciences 1994
J. Phys. IV France 04 (1994) C9-175-C9-178
DOI: 10.1051/jp4:1994929
Spin filtering effect on secondary electrons crossing an iron overlayer
F. Sirotti1, 2, G. Panaccione2 and G. Rossi1, 21 Laboratorium für Festkörperphysik, ETH-Zurich, 8093 Zurich, Switzerland
2 Laboratoire pour l'Utilisation du Rayonnement Electromagnétique, CNRS-CEA-MEN, 91405 Orsay, France
Abstract
Spin polarization (SP) measurements of the secondary electron yield from ferromagnetic interfaces is a sensitive probe of surface and interface magnetism. By exploiting the jumps of the total photoionization cross section in correspondence of the L-edge excitation in transition metals one introduces a chemical sensitivity in the SP via the enhancement of the secondary emission from a specific magnetic or non magnetic specie at the interface. The hv-dependence of the SP in overlayer experiments allows to derive accurately the total and spin-dependent attenuation lengths for secondary electrons in non-magnetic and ferromagnetic materials.
© EDP Sciences 1994