CHEMISORPTION OF Sb ON III-V(110) SURFACES

G.P. Srivastava
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G.P. Srivastava: Physics Department, University of Exeter, Stocker Road, Exeter EX4 4QL, UK

Surface Review and Letters (SRL), 1994, vol. 01, issue 04, 677-680

Abstract: We present a self-consistent pseudopotential study of the atomic geometry, electronic states, and chemisorption of ordered one and two monolayers of Sb on III-V(110) surfaces. For the first monolayer the Sb atoms chemisorb most strongly in the epitaxially continued layer structure (ECLS). The calculated interface atomic geometry agrees well with LEED and X-ray standing wave analyses, and the interface states in the bulk band gap agree with recent photoemission data. For ordered two monolayers in the ECLS the interface shows a metal-like density of states in the band gap.

Date: 1994
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DOI: 10.1142/S0218625X94000928

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