Reflectance Anisotropy of GaAs(100): Theory and Experiment
| Autor: | W. Richter, Norbert Esser, Anatoli I. Shkrebtii, R. Del Sole, B. O. Fimland, Alexander Kley, Wolf Gero Schmidt, Friedhelm Bechstedt |
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| Rok vydání: | 1998 |
| Předmět: |
Physics
Low-energy electron diffraction business.industry Scanning tunneling spectroscopy Ab initio General Physics and Astronomy Spin polarized scanning tunneling microscopy Molecular physics law.invention Optics Transformation (function) law Scanning tunneling microscope Anisotropy business Surface reconstruction |
| Zdroj: | Physical Review Letters |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.81.721 |
| Popis: | The reflectance anisotropy has been calculated by microscopic tight-binding theory for various configurations of the As-rich GaAs(100) cs4 3 4d and s2 3 4d reconstructions, based on precise atomic coordinates from ab initio total-energy minimization. The comparison to experimental reflectance anisotropy in combination with scanning tunneling microscopy and low energy electron diffraction allows one to identify precise correlations between structural units and optical features. Clear indications are obtained for the intermediate steps in the surface reconstruction transformation. [S0031-9007(98)06681-2] |
| Databáze: | OpenAIRE |
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