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Spin-Polarization in Ultrathin Rh Layers on Fe (001)

Published online by Cambridge University Press:  03 September 2012

A. Chouairi
Affiliation:
Laboratoire de Physique de Solide, BP 239, 54506 Vandoeuvre-les-Nancy, France.
H. Dreysse
Affiliation:
Laboratoire de Physique de Solide, BP 239, 54506 Vandoeuvre-les-Nancy, France.
H. Nait-Laziz
Affiliation:
IPCMCS, Université Louis Pasteur, 4 rue Blaise Pascal, 67070 Strasbourg, France.
C. Demangeat
Affiliation:
Laboratoire de Physique de Solide, BP 239, 54506 Vandoeuvre-les-Nancy, France.
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Abstract

The origin of the Rh polarization at the interface with Fe is discussed within a self-consistent mean-field parameterized tight-binding model. Since experimentally it is not yet known how Rh grows on Fe (001), in this paper we consider both fee and bec growth. When Rh grows in the fee structure, it expands its lattice parameter and a polarization is present up to 3 layers, whereas in the bec case only the Rh atoms at the interface are polarized. The results obtained are compared to recent spin- and angle-resolved photoelectron spectroscopy experiments. Good agreement with experiment is obtained in the case of a fee Rh configuration.

Type
Research Article
Copyright
Copyright © Materials Research Society 1993

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