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. © 2005 Elsevier B.V. All rights reserved.
Study of arsenic for antimony exchange at the Sb-stabilized GaSb(0 0 1) surface / Righi, Maria Clelia; Magri, Rita; Bertoni, Carlo Maria. - In: APPLIED SURFACE SCIENCE. - ISSN 0169-4332. - 252:(2006), pp. 5271-5274. [10.1016/j.apsusc.2005.12.068]
Study of arsenic for antimony exchange at the Sb-stabilized GaSb(0 0 1) surface
RIGHI, Maria Clelia;MAGRI, Rita;BERTONI, Carlo Maria
2006
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. © 2005 Elsevier B.V. All rights reserved.
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