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Volumn 64, Issue 16, 2001, Pages

GaAs:N vs GaAs:B alloys: Symmetry-induced effects

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[No Author keywords available]

Indexed keywords


EID: 85038886261     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.64.161201     Document Type: Article
Times cited : (3)

References (29)
  • 14
    • 85038906020 scopus 로고    scopus 로고
    • A soft pseudopotential of N was generated by G. Li and S. Rabii (unpublished)
    • A soft pseudopotential of N was generated by G. Li and S. Rabii (unpublished).
  • 15
    • 85038970081 scopus 로고    scopus 로고
    • However, this result demonstrates a strong bowing of the (formula presented) band gap, since the linear interpolation between GaAs and BAs predicts, of (formula presented) by 0.11 eV for (formula presented). For GaAs:N, the reduction of (formula presented) relative to the linearly interpolated value is much greater, 0.52 eV
    • However, this result demonstrates a strong bowing of the (formula presented) band gap, since the linear interpolation between GaAs and BAs predicts an increase of (formula presented) by 0.11 eV for (formula presented). For GaAs:N, the reduction of (formula presented) relative to the linearly interpolated value is much greater, 0.52 eV.
  • 16
    • 85038907214 scopus 로고    scopus 로고
    • Comparison of the obtained results with experiment should be performed with caution because in the supercell method the N (or B) atoms form a superlattice, and their potential is coherent, while in a real alloy both their locations and the alloy potential are random. The long-range order reduces the band gap of alloys (Refs., and, i.e., overestimates the bowing, and in our case the nonlinear pressure dependence of the band gap
    • Comparison of the obtained results with experiment should be performed with caution because in the supercell method the N (or B) atoms form a superlattice, and their potential is coherent, while in a real alloy both their locations and the alloy potential are random. The long-range order reduces the band gap of alloys (Refs. 15 and 16), i.e., overestimates the bowing, and in our case the nonlinear pressure dependence of the band gap.
  • 27
    • 0002348011 scopus 로고
    • J. D. Chadi, W. A. Harrison, Springer-Verlag, New York, in, edited by, and, p
    • D J. Wolford, in Physics of Semiconductors, edited by J. D. Chadi and W. A. Harrison (Springer-Verlag, New York, 1984), p. 627;
    • (1984) Physics of Semiconductors , pp. 627
    • Wolford, D.J.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.