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Surface Electrical Conduction Correlated with Surface Structures and Atom Dynamics

Author

Listed:
  • Shuji Hasegawa

    (Department of Physics, School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan)

  • Chun-Sheng Jiang

    (Department of Physics, School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan)

  • Yuji Nakajima

    (Department of Physics, School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan)

  • Tadaaki Nagao

    (Department of Physics, School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan)

  • Xiao Tong

    (Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation (JST), Japan)

Abstract

By utilizing a variety of surface super structures formed on silicon surfaces, we have clarified close correlations between the atomic-scale structures and surface-electrical-conduction phenomena. In paricular, we have succeeded for the first time in experimentally confirming the electrical conduction via surface-state bands that are inherent in the surface supertructures. Also, an important phenomenon has been found: atoms adsorbed on the surface donate carriers to the surface-state band, resulting in a remarkable enhancement of conductivity. The ultimate two-dimensional electron systems composed of surface-state bands, which are made close up in our study, are expected to provide a new stage insurface physics.

Suggested Citation

  • Shuji Hasegawa & Chun-Sheng Jiang & Yuji Nakajima & Tadaaki Nagao & Xiao Tong, 1998. "Surface Electrical Conduction Correlated with Surface Structures and Atom Dynamics," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 5(03n04), pages 803-819.
    • Handle: RePEc:wsi:srlxxx:v:05:y:1998:i:03n04:n:s0218625x98001183
    DOI: 10.1142/S0218625X98001183
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    ; 73.25.+i; 73.20.At; 68.35.-p;
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