Surface sites and mobilities of In atoms on a stepped Cu( 100) surface studied at low coverage

M. Breeman*, G. Dorenbos, D.O. Boerma

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

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    Abstract

    The various surface sites of In atoms deposited to a coverage of 0.013 monolayer (ML) onto a stepped Cu(100) surface were determined with low-energy ion scattering (LEIS) as a function of deposition temperature. From the fractions of In atoms occupying different sites, observed in the temperature range 63-300 K, the mobilities of In atoms on the terraces and along the steps were deduced.

    It was found that during the LEIS measurements with 6 keV Ne ions at temperatures below 120 K Cu adatoms were accumulating at the surface. This is explained by diffusion to the surface of interstitial Cu atoms created in the damage cascades. For temperatures above 120 K these Cu adatoms were found to be mobile on the Cu(100) terraces.

    Original languageEnglish
    Pages (from-to)64-68
    Number of pages5
    JournalNuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms
    Volume64
    Issue number1-4
    DOIs
    Publication statusPublished - Feb-1992
    Event10TH INTERNATIONAL CONF ON ION BEAM ANALYSIS - , Netherlands
    Duration: 1-Jul-19915-Jul-1991

    Keywords

    • INDIUM

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