Possible Appearance of Superconductivity on Si(001) Surface : Condensed Matter: Electronic Properties, etc.

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概要

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• Inspired by Kondo et al.'s experiment, which reports that the p(2 × 1) symmetric dimer phase is stable at low temperatures on a Si(001) surface, a two-leg ladder Hubbard model with three Fermi surfaces, which is an effective model of the Si(001) surface, is studied theoretically. The fluctuation-exchange (FLEX) method is adopted to take the effects on-site Coulomb interactions into account. The electronic structures are discussed and an unconventional evenparity superconductivity through large antiferromagnetic spin fluctuations is found for a wide range of doping. Other possible electronic states with large superconducting fluctuations are also discussed.

• 社団法人日本物理学会の論文
• 2000-07-15

著者

• Kontani Hiroshi

  Institute For Soled State Physics University Of Tokyo

• Kontani Hiroshi

  Institute for Solid State Physics, University of Tokyo:Theoretische Physik III

• Kino Hiori

  Institute for Solid State Physics, University of Tokyo

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• Possible Appearance of Superconductivity on Si(001) Surface : Condensed Matter: Electronic Properties, etc.

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