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Volumn 80, Issue 8, 2009, Pages

Polaronic hole localization and multiple hole binding of acceptors in oxide wide-gap semiconductors

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EID: 70349472607     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.80.085202     Document Type: Article
Times cited : (403)

References (36)
  • 10
    • 55349130682 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.78.134427
    • V. Pardo and W. E. Pickett, Phys. Rev. B 78, 134427 (2008). 10.1103/PhysRevB.78.134427
    • (2008) Phys. Rev. B , vol.78 , pp. 134427
    • Pardo, V.1    Pickett, W.E.2
  • 11
    • 68749106021 scopus 로고    scopus 로고
    • 10.1103/PhysRevLett.103.016404
    • J. A. Chan, S. Lany, and A. Zunger, Phys. Rev. Lett. 103, 016404 (2009). 10.1103/PhysRevLett.103.016404
    • (2009) Phys. Rev. Lett. , vol.103 , pp. 016404
    • Chan, J.A.1    Lany, S.2    Zunger, A.3
  • 14
  • 20
    • 0000782234 scopus 로고
    • 10.1103/PhysRevB.16.2901
    • A. Zunger and A. J. Freeman, Phys. Rev. B 16, 2901 (1977). 10.1103/PhysRevB.16.2901
    • (1977) Phys. Rev. B , vol.16 , pp. 2901
    • Zunger, A.1    Freeman, A.J.2
  • 21
    • 50249212855 scopus 로고
    • 10.1016/S0031-8914(34)90011-2
    • T. C. Koopmans, Physica (Utrecht) 1, 104 (1934). 10.1016/S0031-8914(34) 90011-2
    • (1934) Physica (Utrecht) , vol.1 , pp. 104
    • Koopmans, T.C.1
  • 25
    • 70349469005 scopus 로고    scopus 로고
    • Comparing different oxygen pseudopotentials with different projection radii we find in defect-free ZnO that n (Op) lies between 0.39 and 0.69. Therefore, GGA+U can create either a repulsive or an attractive VU [Eq. 4], depending on the choice of the pseudopotential.
    • Comparing different oxygen pseudopotentials with different projection radii we find in defect-free ZnO that n (Op) lies between 0.39 and 0.69. Therefore, GGA+U can create either a repulsive or an attractive VU [Eq. 4], depending on the choice of the pseudopotential.
  • 26
  • 27
    • 0011236321 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.59.1758
    • G. Kresse and D. Joubert, Phys. Rev. B 59, 1758 (1999). 10.1103/PhysRevB.59.1758
    • (1999) Phys. Rev. B , vol.59 , pp. 1758
    • Kresse, G.1    Joubert, D.2
  • 29
    • 57749196971 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.78.235104
    • S. Lany and A. Zunger, Phys. Rev. B 78, 235104 (2008). 10.1103/PhysRevB.78.235104
    • (2008) Phys. Rev. B , vol.78 , pp. 235104
    • Lany, S.1    Zunger, A.2
  • 30
    • 0001671054 scopus 로고
    • 10.1103/PhysRevB.51.4014
    • G. Makov and M. C. Payne, Phys. Rev. B 51, 4014 (1995). 10.1103/PhysRevB.51.4014
    • (1995) Phys. Rev. B , vol.51 , pp. 4014
    • Makov, G.1    Payne, M.C.2
  • 31
    • 70349438411 scopus 로고    scopus 로고
    • For the empirical band-gap correction, we use the following atomic NLEP and GGA+U parameters (see Refs. therein; numbers in eV): VO,p =-1.0, VZn,s =+6.5, VZn,p =-0.6, VIn,s =+7.0, VIn,p =-1.1, VSn,s =+3.7, VSn,p =-0.6 (U-J) Zn,d =6, (U-J) Cu,d =5, and (U-J) Ag,d =4.
    • For the empirical band-gap correction, we use the following atomic NLEP and GGA+U parameters (see Refs. therein; numbers in eV): VO,p =-1.0, VZn,s =+6.5, VZn,p =-0.6, VIn,s =+7.0, VIn,p =-1.1, VSn,s =+3.7, VSn,p =-0.6 (U-J) Zn,d =6, (U-J) Cu,d =5, and (U-J) Ag,d =4.
  • 33
    • 70349465912 scopus 로고    scopus 로고
    • DFT+U implicitly assumes that the partial charge nm,σ differs by unity between occupied and unoccupied m sublevels. However, due to hybridization with the ligands, nm,σ >0 generally holds even for nominally unoccupied crystal-field symmetries. Consequently, DFT+U for transition-metal d states in compounds tends to underestimate the energy splitting when U has been chosen to correctly place the occupied d states.
    • DFT+U implicitly assumes that the partial charge nm,σ differs by unity between occupied and unoccupied m sublevels. However, due to hybridization with the ligands, nm,σ >0 generally holds even for nominally unoccupied crystal-field symmetries. Consequently, DFT+U for transition-metal d states in compounds tends to underestimate the energy splitting when U has been chosen to correctly place the occupied d states.
  • 34
    • 33749233636 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.72.035203
    • L. S. Vlasenko and G. D. Watkins, Phys. Rev. B 72, 035203 (2005). 10.1103/PhysRevB.72.035203
    • (2005) Phys. Rev. B , vol.72 , pp. 035203
    • Vlasenko, L.S.1    Watkins, G.D.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.