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Volumn 67, Issue 15, 2003, Pages 1552081-15520810

Implementation of an all-electron GW approximation based on the projector augmented wave method without plasmon pole approximation: Application to Si, SiC, AlAs, InAs, NaH, and KH

Author keywords

[No Author keywords available]

Indexed keywords

ALUMINUM DERIVATIVE; HYDROGEN; INDIUM; POTASSIUM DERIVATIVE; SILICON; SILICON CARBIDE; SODIUM DERIVATIVE;

EID: 0038547748     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article
Times cited : (225)

References (66)
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    • S. D. Adler, Phys. Rev. 126, 413 (1962); N. Wiser, ibid. 129, 62 (1963); see also D. L. Johnson, Phys. Rev. B 9, 4475 (1974).
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    • S. D. Adler, Phys. Rev. 126, 413 (1962); N. Wiser, ibid. 129, 62 (1963); see also D. L. Johnson, Phys. Rev. B 9, 4475 (1974).
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    • note
    • We have used a simple four-point interpolation method. The use of a more elaborate method like the cubic spline method is shown to not influence the final results.
  • 36
    • 33646610477 scopus 로고    scopus 로고
    • note
    • The reason for not using the same expression as in Ref. 19 is that our expression (15) is more general and provided us with a better stability in the fitting procedure.
  • 38
    • 33646610863 scopus 로고
    • edited by K.H. Hellwege and O. Madelung, Landolt-Börnstein, New Series, Group III, pt. a, Springer, Berlin
    • Numerical Data and Functional Relationships in Science and Technology, edited by K.H. Hellwege and O. Madelung, Landolt-Börnstein, New Series, Group III, Vol. 17, pt. a and Vol. 22, pt. a (Springer, Berlin, 1982).
    • (1982) Numerical Data and Functional Relationships in Science and Technology , vol.17-22 , Issue.PART A
  • 40
    • 33646610685 scopus 로고    scopus 로고
    • note
    • To justify the use of the present expression for F(q), we have also used the function given by Ref. 61 and found that the final QP energies differ by at most 0.02 eV for silicon. Moreover, the F(q) is specific to fcc lattice systems and therefore must be adapted for other systems according to Ref. 62, whereas the function used in this work is independent of crystallographic system. We have also checked if six points are sufficient by performing calculations using a set of 12 points; the resulting QP energies remain unchanged, proving the validity of our choice.
  • 41
    • 33646612490 scopus 로고    scopus 로고
    • note
    • The imaginary part of the self-energy is a sum of delta functions in the plasmon-pole approximation.
  • 51
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    • D. E. Aspnes and A. A. Studna, Phys. Rev. B 27, 985 (1983); D. E. Aspnes, S. M. Kelso, R. A. Logan, and R. Bhatt, J. Appl. Phys. 60, 754 (1986).
    • (1983) Phys. Rev. B , vol.27 , pp. 985
    • Aspnes, D.E.1    Studna, A.A.2
  • 53
    • 33646600152 scopus 로고    scopus 로고
    • note
    • Notice that the same PAW method is used to compute the Si QP energies both within the RPA and the PP model.
  • 54
    • 33646608328 scopus 로고    scopus 로고
    • note
    • 1c for SiC seems to be largely overestimated by GW calculations. In fact, we join the conclusion of Ref. 44 and claim that the experimental value is certainly less precise. This is confirmed by the fact that our calculation agrees by about 0.08 eV with their data.
  • 55
    • 33646608162 scopus 로고    scopus 로고
    • note
    • 1c transition by more than 0.05 eV.
  • 61
    • 33646605819 scopus 로고    scopus 로고
    • Database compiled by D. A. Papaconstantopoulos and co-workers and located at http://manybody.nrl.navy.mil/esdata/database.html (the calculations were performed by the APW method including scalar-relativistic corrections within the LDA).
  • 62
    • 33646606578 scopus 로고    scopus 로고
    • note
    • For the calculated electronic properties of NaH and KH alkali hydrides we have used 64 k points in the full BZ as well as 200 bands, and a dielectric matrix of size 169 × 169 to achieve well converged results.
  • 63
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    • Kunz and Mickish have also reported a band gap for LiH of 6.61 eV compared to a measured value of 4.99 eV [data reported in the paper of S. Baroni et al., Phys. Rev. B 32, 4077 (1985)].
    • (1985) Phys. Rev. B , vol.32 , pp. 4077
    • Baroni, S.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.