Electron correlations in the Hubbard model on the planar pyrochlore lattice

Akihisa Koga, Takuya Yoshioka, Norio Kawakami, Hisatoshi Yokoyama

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We investigate the two-dimensional Hubbard model on the planar pyrochlore lattice at half filling. By means of variational Monte Carlo simulations including nearest neighbor doublon-holon correlations as well as onsite correlations, we discuss how the semi-metallic state is stabilized at zero temperature. The possibility of the plaquette ordered state is also addressed in the framework of our treatment.

Original languageEnglish
Pages (from-to)1070-1071
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume460-462 II
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2007 Sep 1

ASJC Scopus subject areas

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

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