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

11 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 15
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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