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Effects of electron-impurity scattering on density of states in silicene: impurity bands and band-gap narrowing
- Source :
- Phys. Rev. B 94, 235308 (2016)
- Publication Year :
- 2016
-
Abstract
- Considering the interband correlation, we present a generalized multiple-scattering approach of Green's function to investigate the effects of electron-impurity scattering on the density of states in silicene. The reduction of energy gaps in the case of relatively high chemical potential and the transformation of split-off impurity bands into band tails for low chemical potential are found. The dependency of optical conductivity on the impurity concentration is also discussed for frequency within the terahertz regime.<br />Comment: 10 pages, 8 figures, submitted to PRB
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. B 94, 235308 (2016)
- Publication Type :
- Report
- Accession number :
- edsarx.1609.05260
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevB.94.235308