Deformation of Fermi surface due to antiferromagnetic correlation

K. Morita, K. Miyake

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)812-813
Number of pages2
JournalPhysica B: Condensed Matter
Volume281-282
DOIs
Publication statusPublished - Jun 1 2000
EventYamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) - Nagano, Jpn
Duration: Aug 24 1999Aug 28 1999

Fingerprint

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

Cite this

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

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

Research output: Contribution to journalConference article

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