Spatial variation of local work function of the Au/Cu(111) and Pd/Cu(111) systems

Yukio Hasegawa, Jin Feng Jia, Keisuke Inoue, Akira Sakai, Toshio Sakurai

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Spatial variation of local work function has been investigated for the Au/Cu(111) and Pd/Cu(111) systems using scanning tunneling microscopy (STM). While the measured work function of the Au adlayer is in the range between the Au(111) and Cu(111)'s values consistent with the results obtained by others, the work function on the Pd adsorbate shows a marked difference. The work function of the first Pd layer exceeds that of the Pd(111) surface and it increases further on its second layer, suggesting an overshooting (possibly oscillatory) behavior, which has never been reported experimentally.

    Original languageEnglish
    Pages (from-to)109-112
    Number of pages4
    JournalScience Reports of the Rerearch Institutes Tohoku University Series A-Physics
    Volume44
    Issue number1
    Publication statusPublished - 1997 Dec 1

    Keywords

    • Copper
    • Gold
    • Local work function
    • Palladium
    • Scanning tunneling microscopy
    • Surface

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Metals and Alloys

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