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Influence of confinement energy and band anticrossing effect on the electron effective mass in Ga1−yInyNxAs1−x quantum wells

Tomic, S and O’Reilly, E 2005, 'Influence of confinement energy and band anticrossing effect on the electron effective mass in Ga1−yInyNxAs1−x quantum wells' , Physical Review B (PRB), 71 (23) , p. 233301.

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    Abstract

    We present a theoretical study of the electron effective mass in Ga1−yInyNxAs1−x∕GaAs quantum well (QW) structures. The calculations are based on a 10×10 k∙p band anticrossing Hamiltonian, incorporating valence, conduction, and nitrogen-induced bands. The results are tested by comparison with the experimentally determined electron effective mass in QWs with indium composition in the range between 10% and 50%, and nitrogen concentration between 1% and 5%. We report good agreement with experiment, confirming that the enhanced electron effective mass observed in the Ga1−yInyNxAs1−x QW structures considered can be fully accounted for using the band anticrossing model.

    Item Type: Article
    Themes: Energy
    Schools: Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Materials & Physics Research Centre
    Journal or Publication Title: Physical Review B (PRB)
    Publisher: American Physical Society
    Refereed: Yes
    ISSN: 1098-0121
    Depositing User: Prof Stanko Tomic
    Date Deposited: 07 Nov 2011 12:22
    Last Modified: 20 Aug 2013 18:17
    URI: http://usir.salford.ac.uk/id/eprint/18889

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