Quasi-one-dimensional quantized states in an epitaxial Ag film on a one-dimensional surface superstructure.

نویسندگان

  • Naoka Nagamura
  • Iwao Matsuda
  • Nobuhiro Miyata
  • Toru Hirahara
  • Shuji Hasegawa
  • Takashi Uchihashi
چکیده

The in-plane energy dispersion of quantized states in an ultrathin Ag film formed on the one-dimensional (1D) surface superstructure Si(111)-(4 x 1)-In shows clear 1D anisotropy instead of the isotropic two-dimensional free-electron-like behavior expected for an isolated metal film. The present photoemission results demonstrate that an atomic layer at the film-substrate interface can regulate the dimensionality of electron motion in quantum films.

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عنوان ژورنال:
  • Physical review letters

دوره 96 25  شماره 

صفحات  -

تاریخ انتشار 2006