Band gap of the Ge(111)c(2x8) surface by scanning tunneling spectroscopy
SCIE
SCOPUS
- Title
- Band gap of the Ge(111)c(2x8) surface by scanning tunneling spectroscopy
- Authors
- Feenstra, RM; Lee, JY; Kang, MH; Meyer, G; Rieder, KH
- Date Issued
- 2006-01
- Publisher
- AMERICAN PHYSICAL SOC
- Abstract
- The surface band gap of the Ge(111)c(2x8) surface at low temperature is determined on the basis of scanning tunneling spectroscopy. Electrostatic potential computations permit evaluation of tip-induced band bending, from which a correction to the energy scale of the observed spectra is made. Parameter values in the computations are constrained by comparison of the observed spectrum with known spectral features, including high-lying conduction band features derived from first-principles computations. The surface band gap, lying between the bulk valence band maximum and the minimum of an adatom-induced surface band, is found to have a width of 0.49 +/- 0.03 eV.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12163
- DOI
- 10.1103/PhysRevB.73.035310
- ISSN
- 1098-0121
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 73, no. 3, page. 35310 - 35310, 2006-01
- Files in This Item:
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