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EVIDENCE BY ANGLE-SCANNED PHOTOELECTRON DIFFRACTION FOR A CO-INDUCED RESTRUCTURING OF ANi/Pt(111)MONOLAYER

Author

Listed:
  • MAURO SAMBI

    (Dipartimento di Chimica Inorganica Metallorganica e Analitica e Centro, CSSRCC del CNR, Universitá di Padova, via Loredan 4, 35131 Padova, Italy)

  • LAURA ZARATIN

    (Dipartimento di Chimica Inorganica Metallorganica e Analitica e Centro, CSSRCC del CNR, Universitá di Padova, via Loredan 4, 35131 Padova, Italy)

  • GUIDO SANGIOVANNI

    (Dipartimento di Chimica Inorganica Metallorganica e Analitica e Centro, CSSRCC del CNR, Universitá di Padova, via Loredan 4, 35131 Padova, Italy)

  • ERICA PIN

    (Dipartimento di Chimica Inorganica Metallorganica e Analitica e Centro, CSSRCC del CNR, Universitá di Padova, via Loredan 4, 35131 Padova, Italy)

  • GAETANO GRANOZZI

    (Dipartimento di Chimica Inorganica Metallorganica e Analitica e Centro, CSSRCC del CNR, Universitá di Padova, via Loredan 4, 35131 Padova, Italy;)

Abstract

Angle-scanned photoelectron diffraction measurements have been performed prior to and after CO exposure onto a Ni monolayer deposited on Pt(111). Ni is known to grow epitaxially on Pt(111), but there is evidence for an adsorbate-induced restructuring such that the initial atomically flat Ni layer gives place to at least two-layer-high Ni islands. As far as the driving force for the restructuring is concerned, some hypotheses can be put forward considering the Ni–Ni nearest neighbor distances in the Ni monolayer and in the restructured layer, along with some thermodynamical arguments.

Suggested Citation

  • Mauro Sambi & Laura Zaratin & Guido Sangiovanni & Erica Pin & Gaetano Granozzi, 1997. "EVIDENCE BY ANGLE-SCANNED PHOTOELECTRON DIFFRACTION FOR A CO-INDUCED RESTRUCTURING OF ANi/Pt(111)MONOLAYER," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 4(06), pages 1185-1189.
    • Handle: RePEc:wsi:srlxxx:v:04:y:1997:i:06:n:s0218625x97001516
    DOI: 10.1142/S0218625X97001516
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