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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2004

Electronic and magnetic properties of the Fe/ZnSe interface

R. Bertacco
  • Fonction : Auteur
M. Riva
  • Fonction : Auteur
M. Cantoni
  • Fonction : Auteur
F. Ciccacci
  • Fonction : Auteur
M. Portalupi
  • Fonction : Auteur
A. Brambilla
  • Fonction : Auteur
L. Duò
  • Fonction : Auteur
P. Vavassori
  • Fonction : Auteur
F. Gustavsson
  • Fonction : Auteur
J.-M. George
  • Fonction : Auteur

Résumé

The electronic, magnetic, and structural properties of Fe thin films epitaxially grown on ZnSe(001) have been investigated by spin polarized inverse photoemission, x-ray photoemission, magneto-optical Kerr effect, and scanning tunneling microscopy. Ultrathin Fe films present no magnetic remanence, while ferromagnetism develops for Fe coverage larger than 7 ML. However, even in this case, the electronic structure of empty states is quite different from that of high quality Fe(001) films. These findings are interpreted in terms of an evolution from a low coverage superparamagnetic phase towards a ferromagnetic phase typical of thicker films, whose electronic properties still remain different from those of ideal Fe(001) films. The consequences for spin-dependent transport across the Fe/ZnSe(001) interface are discussed.
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Dates et versions

hal-00004509 , version 1 (17-03-2005)

Identifiants

Citer

R. Bertacco, M. Riva, M. Cantoni, F. Ciccacci, M. Portalupi, et al.. Electronic and magnetic properties of the Fe/ZnSe interface. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2004, 69, pp.054421. ⟨10.1103/PhysRevB.69.054421⟩. ⟨hal-00004509⟩
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