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Heteroepitaxial Film of Monolayer Graphene/Monolayerh-BN onNi(111)

Author

Listed:
  • T. Tanaka

    (Department of Applied Physics, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan;
    Kagami Memorial Laboratory for Material Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan)

  • A. Ito

    (Department of Applied Physics, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan;
    Kagami Memorial Laboratory for Material Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan)

  • A. Tajima

    (Department of Applied Physics, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan;
    Kagami Memorial Laboratory for Material Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan)

  • E. Rokuta

    (Department of Applied Physics, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan;
    Kagami Memorial Laboratory for Material Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan)

  • C. Oshima

    (Department of Applied Physics, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan;
    Kagami Memorial Laboratory for Material Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan)

Abstract

Heteroepitaxial multilayers, consisting of graphene/hexagonal boron nitride (h-BN) films onNi(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 monolayerh-BN, in contrast to the softening phonon at 90 meV on the pristine system of monolayerh-BN onNi(111). The findings strongly suggest that the interfacial bonds betweenh-BN andNi(111)weaken due to the formation of monolayer graphene.

Suggested Citation

  • T. Tanaka & A. Ito & A. Tajima & E. Rokuta & C. Oshima, 2003. "Heteroepitaxial Film of Monolayer Graphene/Monolayerh-BN onNi(111)," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 10(05), pages 721-726.
    • Handle: RePEc:wsi:srlxxx:v:10:y:2003:i:05:n:s0218625x03005529
    DOI: 10.1142/S0218625X03005529
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