Study of arsenic for antimony exchange at the Sb-stabilized GaSb(0 0 1) surface |
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Authors: | M.C. Righi Rita Magri C.M. Bertoni |
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Affiliation: | INFM National Research Center on NanoStructures and BioSystems at Surfaces and Dipartimento di Fisica, Università di Modena e Reggio Emilia, Via Campi 213/A, 41100 Modena, Italy |
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Abstract: | In this paper we present a first-principle study on the energetics of a single As2 molecule on GaSb(0 0 1) reconstructed surface. In order to shed light into the mechanisms of anion exchange at the Sb-rich GaSb(0 0 1) surface, we studied firstly As2 adsorption and then As for Sb exchange. We identify a surface region where both the processes are energetically favored. The results of this twofold analysis can be combined to derive possible reaction paths for the anion exchange process. |
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Keywords: | 68.43.Bc 71.15.Mb |
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