STM and ARPES studies on Fe/vicinal Au(1 1 1)

Susumu Shiraki, Hideki Fujisawa, Masashi Nantoh, Maki Kawai

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    We have investigated the growth of Fe on Au(455) and Au(788) surfaces by scanning tunneling microscopy and examined the electronic structures by angle-resolved photoemission spectroscopy. We found that deposited Fe atoms adsorb at the lower corners of the steps, and form one-dimensional monatomic Fe chains. In addition, Fe deposition has significant influence on the surface potential of the regularly stepped surface. After decorating the step edges with monatomic Fe rows, photoemission spectra measured in the direction perpendicular to the steps show parabolic dispersion and a downward energy shift of the bottom of the surface state band. This result suggests that Fe adatoms at step edges act as attractive scatterers and reduce the step potential barrier height.

    Original languageEnglish
    Pages (from-to)177-181
    Number of pages5
    JournalJournal of Electron Spectroscopy and Related Phenomena
    Volume137-140
    Issue numberSPEC. ISS.
    DOIs
    Publication statusPublished - 2004 Jul

    Keywords

    • Angle-resolved photoemission spectroscopy
    • Gold
    • Growth
    • Iron
    • Scanning tunneling microscopy
    • Surface state

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Radiation
    • Atomic and Molecular Physics, and Optics
    • Condensed Matter Physics
    • Spectroscopy
    • Physical and Theoretical Chemistry

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