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BULK CONTRIBUTIONS TO THE PHOTOEMISSION SPECTRA OF CHEMISORBED HYDROGEN ON THESi(111)-(7 × 7)SURFACE: A THEORETICAL STUDY

Author

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  • LOUISE STAUFFER

    (Laboratoire de Physique et de Spectroscopie Electronique, URA 1435 CNRS, Faculté des Sciences et techniques, 4 rue des frères Lumière, 68093 Mulhouse Cedex, France)

  • CHRISTIAN MINOT

    (Laboratoire de Chimie Théorique, UPR 9070 CNRS, Université P. et M. Curie, Boîte 137 Tour 23-22 p114, 4 Place Jussieu 75252 Cedex 05, France)

Abstract

From a recent theoretical study1using crystalline extension of the Hückel method, the surface contributions to the main featuresP1andP2observed in photoemission experiments when atomic hydrogen is chemisorbed on theSi(111)-(7 × 7)reconstructed surface have been attributed to the saturation of the dangling bonds of the adatoms. This paper investigates the bulk contributions to those peaks. The contributions are derived from calculations on an eight-layer slab and on a real bulk. We conclude that states corresponding to σ bonding between successive silicon layers contribute to peakP2.

Suggested Citation

  • Louise Stauffer & Christian Minot, 1997. "BULK CONTRIBUTIONS TO THE PHOTOEMISSION SPECTRA OF CHEMISORBED HYDROGEN ON THESi(111)-(7 × 7)SURFACE: A THEORETICAL STUDY," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 4(01), pages 53-58.
    • Handle: RePEc:wsi:srlxxx:v:04:y:1997:i:01:n:s0218625x97000092
    DOI: 10.1142/S0218625X97000092
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