Deformation of Fermi surface due to antiferromagnetic correlation

K. Morita, K. Miyake

研究成果: ジャーナルへの寄稿Conference article

6 引用 (Scopus)

抄録

It is investigated, on the basis of the fluctuation exchange approximation, as to how the shape of the Fermi surface is modified in two-dimensional t-t′-U Hubbard model at half-filling as the strength of the onsite Coulomb interaction U is increased. The antiferromagnetic (AF) correlation length is shown to be enhanced as the Coulomb interaction gets closer to the critical value Uc for the onset of AF order. At the same time, the shape of the renormalized Fermi surface is deformed showing the tendency of nesting near Uc.

元の言語英語
ページ(範囲)812-813
ページ数2
ジャーナルPhysica B: Condensed Matter
281-282
DOI
出版物ステータス出版済み - 6 1 2000
イベントYamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) - Nagano, Jpn
継続期間: 8 24 19998 28 1999

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Fermi surface
Coulomb interactions
Fermi surfaces
Hubbard model
tendencies
interactions
approximation

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

これを引用

Deformation of Fermi surface due to antiferromagnetic correlation. / Morita, K.; Miyake, K.

:: Physica B: Condensed Matter, 巻 281-282, 01.06.2000, p. 812-813.

研究成果: ジャーナルへの寄稿Conference article

Morita, K. ; Miyake, K. / Deformation of Fermi surface due to antiferromagnetic correlation. :: Physica B: Condensed Matter. 2000 ; 巻 281-282. pp. 812-813.
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