d- and p-Wave Superconductivity Mediated by Spin Fluctuations in Two- and Three-Dimensional Single-Band Repulsive Hubbard Model : Condensed Matter: Electronic Properties, etc.

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概要

• 論文の詳細を見る

• We have systematically studied superconducting instabilities in the repulsive Hubbard model for d-wave and p-wave pairing in various 2D and 3D lattices. Using fluctuation exchange approximation, we consider 3D face centered cubic lattice, 3D body centered cubic lattice, 3D simple cubic lattice, 2D square lattice and 2D triangular lattice, where either strong ferro- or antiferromagnetic spin fluctuations are present. We show that (i) d-wave instability mediated by antiferromagnetic spin fluctuations is stronger than p-wave instability mediated by ferromagnetic spin fluctuations both in 2D and 3D, and (ii) d-wave instability in 2D is much stronger that that in 3D. These amount that the "best" situation is the antiferromagnetic-fluctuation mediated in 2D as far as the single-band Hubbard model on ordinary lattices are concerned.

• 社団法人日本物理学会の論文
• 2000-04-15

著者

• Aoki Hiroaki

  Department Of Liberal Arts And Sciences Chubu University

• ARITA Ryotaro

  Department of Applied Physics, University of Tokyo

• KUROKI Kazuhiko

  Department of Applied Physics and Chemistry, The University of Electro-Communications

• AOKI Hideo

  Department of Physics, University of Tokyo

• Aoki Hideo

  Department Of Physics University Of Tokyo

• Aoki H

  Center For Low Temperature Science Tohoku University

• Aoki H

  Department Of Physics Tohoku University

• Aoki Hidekazu

  Physics Department Tohoku University

• Aoki Hidekazu

  Physics Department Graduate School Of Science Tohoku University

• Arita R

  Department Of Applied Physics University Of Tokyo:crest Jst

• Arita Ryotaro

  Department Of Applied Physics University Of Tokyo:crest Jst

• Kuroki K

  Department Of Applied Physics And Chemistry The University Of Electro-communications

• Kuroki Kazuhiko

  Univ. Electro‐communications Tokyo

• Kuroki Kazuhiko

  Department Of Applied Physics And Chemistry The University Of Electro-communications

• Aoki Hidekazu

  Department Of Physics Tohoku University

• Aoki Hidekazu

  Max-planck-institut Fur Chemische Physik Fester Stoffe

• Aoki H

  Department Of Physics University Of Tokyo

• Kusakabe K

  Graduate School Of Engineering Science Osaka University

• Aoki Hideo

  Department Of Neurosurgery Yamaguchi University School Of Medicine

• Aoki Hideo

  Department Of Biochemical Engineering Graduate School Of Science And Technology Yamagata University

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