Perpendicular magnetization in epitaxial Cu/Fe/Cu/Si(111) ultrathin films (Articolo in rivista)

Type
Label
  • Perpendicular magnetization in epitaxial Cu/Fe/Cu/Si(111) ultrathin films (Articolo in rivista) (literal)
Anno
  • 2000-01-01T00:00:00+01:00 (literal)
Alternative label
  • G. Gubbiotti(1), G. Carlotti(1), F. D'Orazio(2), F. Lucari(2), R. Gunnella(3) and M. De Crescenzi(3) (2000)
    Perpendicular magnetization in epitaxial Cu/Fe/Cu/Si(111) ultrathin films
    in Surface science
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • G. Gubbiotti(1), G. Carlotti(1), F. D'Orazio(2), F. Lucari(2), R. Gunnella(3) and M. De Crescenzi(3) (literal)
Pagina inizio
  • 891 (literal)
Pagina fine
  • 895 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 454-456 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Dipartimento di Fisica dell'Universita`,INFM,Via Pascoli, I-06100 Perugia, Italy (2) Dipartimento di Fisica dell'Universita`, INFM,Via Vetoio-Coppito, I-67010 L'Aquila, Italy (3) Dipartimento di Matematica e Fisica dell'Universita`, INFM,Via Madonna delle Carceri, I-62032 Camerino, Italy (literal)
Titolo
  • Perpendicular magnetization in epitaxial Cu/Fe/Cu/Si(111) ultrathin films (literal)
Abstract
  • Epitaxial Fe films, with thickness in the range between 2.5 and 12A° , were grown in UHV conditions on the 7×7 reconstructed (111)-Si surface, with a Cu 35A° thick buffer layer, using the so-called metal-metal epitaxy on silicon (MMES). Kikuchi electron diffraction showed that the growth of Fe on Cu/Si(111) occurs first by formation of a pseudomorphic film of c-Fe(111), about two to three atomic layers thick, and by the successive growth of bcc Fe(110) domains in the Kurdjumov-Sachs orientation, in agreement with our previous low-energy electron diffraction observations. Kerr effect measurements carried out at low temperatures (20-150 K) revealed that Fe films thinner than 5-6A° are ferromagnetic with an easy axis magnetization orthogonal to the film plane. With increasing Fe thickness, in coincidence with the fcc-to-bcc structural transformation, the easy axis switches to the in-plane orientation over a finite range of thickness (literal)
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