How much room for BiGa heteroantisites in GaAs1-xBix? (Articolo in rivista)

Type
Label
  • How much room for BiGa heteroantisites in GaAs1-xBix? (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Alternative label
  • Ciatto G., Alippi P., Amore Bonapasta A., Tiedje T. (2011)
    How much room for BiGa heteroantisites in GaAs1-xBix?
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ciatto G., Alippi P., Amore Bonapasta A., Tiedje T. (literal)
Pagina inizio
  • 141912 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 99 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • http://dx.doi.org/10.1063/1.3647635 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP48, Gif-sur-Yvette Cedex 91192, France CNR-Istituto di Struttura della Materia, Via Salaria km. 29, Monterotondo Stazione300 I-00016, Italy Department of Electrical and Computer Engineering, University of Victoria, Victoria, British Columbia V8W 3P6, Canada (literal)
Titolo
  • How much room for BiGa heteroantisites in GaAs1-xBix? (literal)
Abstract
  • We addressed the issue of bismuth heteroantisite defects (BiGa) in GaAs1-xBix/GaAs epilayers by coupling x-ray absorption spectroscopy at the bismuth edge with density functional theory calculations of the defect structure. Calculations predict a large relaxation of the Bi-As interatomic distances when Bi atoms substitute Ga, however we found no experimental evidence of it. Quantitative analysis of the x-ray absorption spectra allows us to establish a maximum concentration limit for BiGa, which corresponds to about 5% of the total Bi atoms. BiGa do not account for the modifications in the spectra previously attributed to short range ordering. (literal)
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