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Volumn 93, Issue 11, 2016, Pages

Theoretical investigation of electron-hole complexes in anisotropic two-dimensional materials

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EID: 84961880407     PISSN: 24699950     EISSN: 24699969     Source Type: Journal    
DOI: 10.1103/PhysRevB.93.115314     Document Type: Article
Times cited : (45)

References (40)
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    • Notice that, although slightly anisotropic, the dielectric constant of bulk bP in each direction has similar values, (Equation presented), and (Equation presented). Therefore, here we use a geometric mean for the dielectric constant of (Equation presented)-bP, (Equation presented), following Ref. [24]. As for (Equation presented)-As, dielectric constants are still missing in the literature, thus, we consider here the same value of (Equation presented) as in bP, which is expected to be at least in the same order of magnitude
    • Notice that, although slightly anisotropic, the dielectric constant of bulk bP in each direction has similar values, (Equation presented), and (Equation presented). Therefore, here we use a geometric mean for the dielectric constant of (Equation presented)-bP, (Equation presented), following Ref. [24]. As for (Equation presented)-As, dielectric constants are still missing in the literature, thus, we consider here the same value of (Equation presented) as in bP, which is expected to be at least in the same order of magnitude.
  • 30
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    • See Supplemental Material at for a table of material parameters and details on the definition of relative and center-of-mass coordinates, as well as on the Jastrow term used in DMC calculations
    • See Supplemental Material at http://link.aps.org/supplemental/10.1103/PhysRevB.93.115314 for a table of material parameters and details on the definition of relative and center-of-mass coordinates, as well as on the Jastrow term used in DMC calculations.
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    • It should be noted that a recent work [, ()] comparing the model of Eq. (2) with ab initio calculations suggests that, at least for isotropic 2D materials, the model of Eq. (2) gives a quantitative account of the effective electron-hole interaction in the isolated monolayer case, but produces binding energies that are too small when additional layers or a substrate is present. Nevertheless, this does not change our conclusions regarding trion binding energies, since the (presumed accurate) monolayer result yields an upper bound which is still significantly below that of Ref. [18]
    • It should be noted that a recent work [S. Latini, T. Olsen, and K. S. Thygesen, Phys. Rev. B 92, 245123 (2015)] comparing the model of Eq. (2) with ab initio calculations suggests that, at least for isotropic 2D materials, the model of Eq. (2) gives a quantitative account of the effective electron-hole interaction in the isolated monolayer case, but produces binding energies that are too small when additional layers or a substrate is present. Nevertheless, this does not change our conclusions regarding trion binding energies, since the (presumed accurate) monolayer result yields an upper bound which is still significantly below that of Ref. [18]. PRBMDO 1098-0121 10.1103/PhysRevB.92.245123
    • (2015) Phys. Rev. B , vol.92 , pp. 245123
    • Latini, S.1    Olsen, T.2    Thygesen, K.S.3
  • 38
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    • Vy. Tran, R. Fei, and L. Yang, 2D Mater. 2, 044014 (2015). 2053-1583 10.1088/2053-1583/2/4/044014
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.