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Volumn 82, Issue 11, 2010, Pages

Charged impurity scattering and mobility in gated silicon nanowires

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EID: 77957559377     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.82.115318     Document Type: Article
Times cited : (36)

References (54)
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    • -3 ( HfO2 coating, room temperature). We therefore expect limited localization in this range of concentrations
    • -3 ( HfO2 coating, room temperature). We therefore expect limited localization in this range of concentrations.
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    • We do, indeed, get the same results as in Ref. for unscreened impurities: the transmission of minority carriers is blocked over a few hundreds of millielectron volt around the band edges. However, the transport of minority carriers mostly happen in gated devices, so that the impurities are, in practice, screened by oxides, gates and free carriers
    • We do, indeed, get the same results as in Ref. for unscreened impurities: the transmission of minority carriers is blocked over a few hundreds of millielectron volt around the band edges. However, the transport of minority carriers mostly happen in gated devices, so that the impurities are, in practice, screened by oxides, gates and free carriers.
  • 48
    • 77957569754 scopus 로고    scopus 로고
    • The Coulomb potentials for P and B are not exactly equal in absolute value because they differ on the impurity site, corresponding to different chemical shifts (Refs.
    • The Coulomb potentials for P and B are not exactly equal in absolute value because they differ on the impurity site, corresponding to different chemical shifts (Refs.).
  • 49
    • 77957596578 scopus 로고    scopus 로고
    • The Δ2 and Δ4 valleys are exactly twofold and fourfold degenerate in the effective mass approximation only. In the tight-binding approach, intervalley couplings completely lift the degeneracies within the Δ2 and Δ4 valleys. This is for example visible in Fig. : the two steps around ε=1.33 eV actually correspond to the Δ4 valleys
    • The Δ 2 and Δ 4 valleys are exactly twofold and fourfold degenerate in the effective mass approximation only. In the tight-binding approach, intervalley couplings completely lift the degeneracies within the Δ 2 and Δ 4 valleys. This is for example visible in Fig.: the two steps around ε = 1.33 eV actually correspond to the Δ 4 valleys.
  • 54
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    • -3
    • -3.


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