Electronic structure of the topmost tenfold surface of decagonal Al-Ni-Co quasicrystal

T. Suzuki, H. R. Sharma, T. Nishimura, M. Shimoda, Y. Yamauchi, A. P. Tsai

    研究成果: Article査読

    10 被引用数 (Scopus)

    抄録

    The electronic structure of the tenfold surface of a decagonal Al-Ni-Co quasicrystal was investigated using metastable He*(2S3,1s2s) deexcitation spectroscopy, which is extremely sensitive to the topmost surface. It was found that the density of states at the Fermi level was remarkably reduced at the topmost surface. The deexcitation of He* via a resonance transition followed by Auger neutralization observed on the quasicrystalline surface indicates the persistence of states within the pseudogap at the topmost surface. The similarity of the electronic structure between the topmost surface and the bulk is consistent with a bulk-terminated structure, as observed by low-energy ion scattering spectroscopy.

    本文言語English
    論文番号115427
    ジャーナルPhysical Review B - Condensed Matter and Materials Physics
    72
    11
    DOI
    出版ステータスPublished - 2005 9月 15

    ASJC Scopus subject areas

    • 電子材料、光学材料、および磁性材料
    • 凝縮系物理学

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