Fe t2g band dispersion and spin polarization in thin films of Fe3O4(0 0 1)/MgO(0 0 1): Half-metallicity of magnetite revisited (Articolo in rivista)

Type
Label
  • Fe t2g band dispersion and spin polarization in thin films of Fe3O4(0 0 1)/MgO(0 0 1): Half-metallicity of magnetite revisited (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.87.085118 (literal)
Alternative label
  • Wang, W., Mariot, J.-M., Richter, M.C., Heckmann, O., Ndiaye, W., De Padova, P., Taleb-Ibrahimi, A., Le Fèvre, P., Bertran, F., Bondino, F., Magnano, E., Krempaský, J., Blaha, P., Cacho, C., Parmigiani, F., Hricovini, K. (2013)
    Fe t2g band dispersion and spin polarization in thin films of Fe3O4(0 0 1)/MgO(0 0 1): Half-metallicity of magnetite revisited
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Wang, W., Mariot, J.-M., Richter, M.C., Heckmann, O., Ndiaye, W., De Padova, P., Taleb-Ibrahimi, A., Le Fèvre, P., Bertran, F., Bondino, F., Magnano, E., Krempaský, J., Blaha, P., Cacho, C., Parmigiani, F., Hricovini, K. (literal)
Pagina inizio
  • 085118 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 87 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a Laboratoire de Physique des Matériaux et des Surfaces, Université de Cergy-Pontoise, 5 mail Gay-Lussac, 95031 Cergy-Pontoise, France b Institute of Precision Optical Engineering, Department of Physics, Tongji University, Shangai 200092, China c Laboratoire de Chimie Physique-Matière et Rayonnement (UMR 7614), Université Pierre et Marie Curie, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France d DSM, IRAMIS, Service de Physique et Chimie des Surfaces et des Interfaces, 91191 Gif-sur-Yvette, France e CNR, Istituto di Struttura della Materias, Via Fosso del Cavaliere, 00133 Roma, Italy f UR1-CNRS/Synchrotron, SOLEIL, Saint-Aubin, B.P. 48, 91192 Gif-sur-Yvette Cedex, France g Synchrotron, SOLEIL, Saint-Aubin, B.P. 48, 91192 Gif-sur-Yvette Cedex, France h CNR, Laboratorio TASC INFM, S.S. 14, Km 163.5 in Area Science Park, 34012 Trieste, Italy i Paul Scherrer Institut, 5232 Villigen PSI, Switzerland j TU Wien, Institut für Materialchemie, Getreidemarkt 9/165, 1060 Wien, Austria k Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxon OX11 0QX, United Kingdom l Department of Physics, Università Degli Studi di Trieste, 34127 Trieste, Italy (literal)
Titolo
  • Fe t2g band dispersion and spin polarization in thin films of Fe3O4(0 0 1)/MgO(0 0 1): Half-metallicity of magnetite revisited (literal)
Abstract
  • We have performed angle- and spin-resolved photoemission measurements on Fe3O4(0 0 1)/MgO(0 0 1). Despite intrinsic electron-lattice (polaron) interaction a Fe t2g band dispersion is observed, as well as a Fermi surface. The states close to the Fermi level show a spin polarization up to -72% as measured with a 4.65 eV laser light. All the data can be simulated starting from GGA+U bulk band-structure calculations and taking into account the polaron and initial-state lifetime broadening involved in the photoemission process. This conciliates the electronic structure of Fe3O4 with a band model and confirms the half-metallic nature of Fe3O4. (literal)
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