Surface atomic structure of InAs((111)over-bar)2x2 and InSb((111)over-bar)2x2 studied by core level spectroscopy

Surface sensitive high resolution core level spectroscopy has been applied to the molecular beam epitaxy grown InAs((111) over bar)2 x 2 and InSb((111) over bar)2 x 2 surfaces. For both systems the In 4d core level consists of one dominating component while the Group V core levels are deconvoluted i...

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Bibliographic Details
Published in:Surface science 1996-02, Vol.347 (1-2), p.199
Main Authors: Andersson, C B M, Karlsson, Ulf O, Hakansson, M C, Olsson, L O, Ilver, L, Kanski, J, Nilsson, P O
Format: Article
Language:English
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Summary:Surface sensitive high resolution core level spectroscopy has been applied to the molecular beam epitaxy grown InAs((111) over bar)2 x 2 and InSb((111) over bar)2 x 2 surfaces. For both systems the In 4d core level consists of one dominating component while the Group V core levels are deconvoluted into four components. This analysis is consistent with a surface model where the topmost layer consists entirely of arsenic or antimony. In this model, Group V atoms form trimers bound to Group V atoms in the first double layer, leaving a single Group V rest atom per unit cell.
ISSN:0039-6028
1879-2758
DOI:10.1016/0039-6028(95)00972-8