Surface states at the GaAs(001)2×4 surface (Articolo in rivista)

Type
Label
  • Surface states at the GaAs(001)2×4 surface (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.69.081308 (literal)
Alternative label
  • F. Arciprete; C. Goletti; E. Placidi; C. Hogan; P. Chiaradia; M. Fanfoni; F. Patella; A. Balzarotti (2004)
    Surface states at the GaAs(001)2×4 surface
    in Physical review. B, Condensed matter and materials physics (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • F. Arciprete; C. Goletti; E. Placidi; C. Hogan; P. Chiaradia; M. Fanfoni; F. Patella; A. Balzarotti (literal)
Pagina inizio
  • 081308-1 (literal)
Pagina fine
  • 081308-4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://prb.aps.org/abstract/PRB/v69/i8/e081308 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 69 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 8 (literal)
Note
  • ISI Web of Science (WOS), Scopus (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Fisica, Universita` di Roma ''Tor Vergata'' and Istituto Nazionale per la Fisica della Materia, Via della Ricerca Scientifica 1, I-00133 Roma, Italy (literal)
Titolo
  • Surface states at the GaAs(001)2×4 surface (literal)
Abstract
  • We have clearly evidenced the contribution of true surface states, in the range 1.8-2.5 eV, to the optical anisotropy of the GaAs(001)2×4 surface grown in situ by molecular beam epitaxy. These spectral features are well below the photon energy (2.9 eV) where bulklike anisotropies appear in coincidence with the E1 bulk critical point. The surface character is established by studying the evolution of the reflectance anisotropy spectroscopy spectra versus oxygen exposure. The interpretation is strengthened by comparison with high-resolution electron-energy-loss spectra measured on the same surface and by first-principles density-functional theory calculations. (literal)
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