Atomic and Electronic Structures of Si(111)-√21×√21 Superstructure

DOI Web Site 参考文献19件
  • Fukaya Y.
    Advanced Science Research Center, Japan Atomic Energy Agency, Japan
  • Kubo K.
    Department of Physics, University of Tokyo, Japan
  • Hirahara T.
    Department of Physics, University of Tokyo, Japan
  • Yamazaki S.
    Department of Physics, University of Tokyo, Japan
  • Choi W. H.
    Department of Physics and Center for Atomic Wires and Layers, Pohang University of Science and Technology, Korea
  • Yeom H. W.
    Department of Physics and Center for Atomic Wires and Layers, Pohang University of Science and Technology, Korea
  • Kawasuso A.
    Advanced Science Research Center, Japan Atomic Energy Agency, Japan
  • Hasegawa S.
    Department of Physics, University of Tokyo, Japan
  • Matsuda I.
    ISSP, University of Tokyo, Japan

抄録

The √21×√21-(Au,Ag) phase on a Si(111) surface, prepared by the Ag deposition on the Si(111)-5×2-Au surface, was studied by using angle-resolved photoemission spectroscopy (ARPES) and scanning tunneling microscopy (STM). The surface phase is metallic and has a two-dimensional electronic structure similar to those of the √21×√21 phases prepared by noble metal adsorption on the Si(111)-√3×√3-Ag surface. An additional surface-state was found, which may originate from the Au 6s and 6p orbitals. [DOI: 10.1380/ejssnt.2012.310]

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