Analysis of checkerboard electron system by path-integral renormalization group method

T. Yoshioka, A. Koga, N. Kawakami

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

We study the ground state properties of a geometrically frustrated Hubbard model on the checkerboard lattice by means of the path-integral renormalization group method. We calculate the charge and spin correlation functions to investigate instabilities to the charge and/or spin-ordered states. In contrast to the recent claim based on a renormalized mean-field treatment, charge correlations are uniformly suppressed while spin correlations are enhanced at certain wave vectors.

Original languageEnglish
Pages (from-to)294-296
Number of pages3
JournalPhysica B: Condensed Matter
Volume378-380
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2006 May 1
Externally publishedYes

Keywords

  • Checkerboard lattice
  • Geometrical frustration
  • Hubbard model

ASJC Scopus subject areas

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

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