ATOMIC-STRUCTURE OF THE GE/SI(100)-(2X1) SURFACE
SCIE
SCOPUS
- Title
- ATOMIC-STRUCTURE OF THE GE/SI(100)-(2X1) SURFACE
- Authors
- CHO; JH; KANG; MH
- Date Issued
- 1994-05-15
- Publisher
- AMERICAN PHYSICAL SOC
- Abstract
- We have determined the atomic structure of the Ge-covered Si(100) surface in one-monolayer coverage using the pseudopotential density-functional total-energy calculation scheme. We find that the asymmetric Ge dimer structure is energetically favored over the symmetric one with a stabilization energy of 0.35 eV/dimer: at equilibrium, the dimer bond length is 2.39 angstrom and the dimer axis tilts 16.3-degrees. The present result confirms the experimental observations of the asymmetric dimers on this surface, but the calculated dimer bond length differs from a recent x-ray standing-wave measurement.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/11979
- DOI
- 10.1103/PhysRevB.49.13670
- ISSN
- 1098-0121
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 49, no. 19, page. 13670 - 13673, 1994-05-15
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