Critical Study on 2D Superconducting Fluctuation : in a Weak Coupling Case : Condensed Matter: Electronic Properties, etc.

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概要

• 論文の詳細を見る

• Effects of the 2D superconducting fluctuation in a weak coupling case on the Cooper pairing susceptibility χ(q,ω) and the single particle Green's function are examined by taking account of the most divergent contributions to those. It is found that the most divergent terms due to vertex corrections to the irreducible parts of χ(0, 0) are renormalized to be comparable to less divergent terms due to the self-enegy corrections, which play main roles eventually. Then, χ(0, 0) diverges as T^<(-T_F/2T)>/log |T_F/T| at T → 0, where T and T_F are temperature and the Fermi temperature, respectively, while the pseudogap is developed in the single particle spectra below T^<(0)>_c to reach its maximum value Δ^<(0)>e^<-1/(12)> at T = 0, where T^<(0)>_c and Δ^<(0)> are the transition temperature and the energy gap at T = 0 obtained in the mean field approximation, respectively.

• 社団法人日本物理学会の論文
• 2000-07-15

著者

• Kuroda Yoshihiro

  Department of Pharmaceutical Health Care, Faculty of Pharmaceutical Sciences, Himeji Dokkyo Universi

• MATSUURA Tamifusa

  Department of Physics,Nagoya University

• Tamifusa Matsuura

  Department Of Physics Nagoya University

• Matsuura Tamifusa

  Department Of Physics Nagoya University

• KOBAYASHI Akito

  CREST, Japan Science and Technology Corporation (JST)

• KOSUGE Yu

  Department of Physics, Nagoya University

• SATO Hisaaki

  Department of Physics, Nagoya University

• Kobayashi A

  Institute For Advanced Research Nagoya University

• Kobayashi A

  Department Of Physics Division Of Material Science Nagoya University

• Kobayashi Akito

  Department Of Physics Nagoya University

• Kobayashi Akito

  Crest Japan Science And Technology Corporation (jst)

• Kosuge Yu

  Department Of Physics Nagoya University

• Kuroda Yoshihiro

  Department Of Pharmaceutical Health Care Faculty Of Pharmaceutical Sciences Himeji Dokkyo University

• Sato Hisaaki

  Department Of Physics Nagoya University

• Sato Hisaaki

  Department Of Hygiene And Microbiology Faculty Of Veterinary Medicine Hokkaido University

• KURODA Yoshihiro

  Physics Department, Nagoya University

• MATSUURA Tamifusa

  Physics Department, Nagoya University

• MATSUURA Tamifusa

  Department of Physics, Nagaya University

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