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Phys. Rev. B 52 (1995) pp. 3063-3066
Magnetism of Fe on Au(100) in the monolayer limit
Istituto Nazionale di Fisica della Materia-Dipartimento di Fisica, Politecnico di Milano, piazza Leonardo da Vinci 32, I-20133 Milano, Italy
School of Physics, University of Bath, BA2 7AY, United Kingdom
Abstract
We report a spin-resolved inverse photoemission study of the electronic
structure of Fe/Au(100) thin films, concentrating on states at the center
of the surface Brillouin zone and film thicknesses in the monolayer regime.
We identify states with minority-spin character 0.7 eV above the Fermi level,
confirming previous tentative assignments based upon spin-integrated studies.
However, a feature previously assigned to a quantum-well state is found to be
exchange split by only 200 meV, too small to originate from Fe-derived states,
but in line with self-consistent band-structure calculations that predict an
Au-derived interface state.