Surface reconstructions for InAs(001) studied with density-functional theory and STM
- 15 September 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 62 (12) , R7719-R7722
- https://doi.org/10.1103/physrevb.62.r7719
Abstract
The stability of different surface reconstructions on InAs(001) is investigated theoretically and experimentally. Density-functional theory calculations predict four different surface reconstructions to be stable at different chemical potentials. The two dominant reconstructions are the β2 (2×4) for high As, and the α2 (2×4) for low As overpressure. This trend is confirmed by scanning tunneling microscopy of carefully annealed InAs(001) surfaces. A similar behavior is predicted for GaAs(001).Keywords
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