Magnetic properties of the infinitely repulsive Hubbard model near half filling

Péter Gurin, Zsolt Gulácsi

Research output: Contribution to journalArticle

Abstract

Many theoretical works discuss the magnetic properties of the strongly repulsive Hubbard model near half filling. Several authors suggest that the system which contains a few holes does not behave as a ferromagnet, unlike in the one-hole case described by Nagaoka's famous result. We discuss the finite temperature properties of finite lattices. Using an efficient Monte Carlo method magnetic and specific heat results are presented for a 10 by 10 lattice with two holes. Our results show that the magnetization increases with decreasing temperature for such a finite system.

Original languageEnglish
Pages (from-to)119-122
Number of pages4
JournalCzechoslovak Journal of Physics
Volume52
Issue number2
DOIs
Publication statusPublished - Feb 1 2002

Keywords

  • Monte Carlo simulation
  • Nagaoka's theorem

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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