Observation of Quantum-Size Effects at Room Temperature on Metal Surfaces With STM

DOI Web Site 被引用文献11件
  • Phaedon Avouris
    IBM Research Division, T. J. Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598, USA.
  • In-Whan Lyo
    IBM Research Division, T. J. Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598, USA.

抄録

<jats:p>Surface steps act as confining barriers for electrons in metal-surface states. Thus, narrow terraces and small single-atom—high metal islands act as low-dimensional, electron-confining structures. In sufficiently small structures, quantum-size effects are observable even at room temperature. Scanning tunneling spectroscopy is used to image the probability amplitude distributions and discrete spectra of the confined states. Examination of the electronic structure of the steps provides evidence for electron-density smoothing and the formation of step-edge states. Estimates of the electron-confining barriers are obtained.</jats:p>

収録刊行物

  • Science

    Science 264 (5161), 942-945, 1994-05-13

    American Association for the Advancement of Science (AAAS)

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