Heteroepitaxial film of monolayer graphene/monolayer h-BN on Ni(111)

T. Tanaka, A. Ito, A. Tajima, E. Rokuta, C. Oshima

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    13 Citations (Scopus)

    Abstract

    Heteroepitaxial multilayers, consisting of graphene/hexagonal boron nitride (h-BN) films on Ni(111), have been investigated by means of vibrational spectroscopy, low energy electron diffraction and Auger electron spectroscopy. Vibrational spectra of the heteroepitaxial film show the appearance of transverse optical (TO) modes with out-of-plane polarization at 100 meV of the monolayer h-BN, in contrast to the softening phonon at 90 meV on the pristine system of monolayer h-BN on Ni(111). The findings strongly suggest that the interfacial bonds between h-BN and Ni(111) weaken due to the formation of monolayer graphene.

    Original languageEnglish
    Pages (from-to)721-726
    Number of pages6
    JournalSurface Review and Letters
    Volume10
    Issue number5
    DOIs
    Publication statusPublished - 2003 Oct

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    Keywords

    • Graphite
    • h-BN
    • HREELS
    • Phonon

    ASJC Scopus subject areas

    • Materials Science(all)
    • Surfaces and Interfaces
    • Atomic and Molecular Physics, and Optics
    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

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