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Magnetic Properties of the Infinitely Repulsive Hubbard Model Near Half Filling

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Czechoslovak Journal of Physics Aims and scope

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.

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Authors and Affiliations

  1. Institute of Nuclear Research of the Hungarian Acad. Sci., POB 51, H-4001, Debrecen, Hungary

    Péter Gurin

  2. Department of Theoretical Physics, Debrecen University, H-4010, Debrecen, Hungary

    Zsolt Gulácsi

Authors
  1. Péter Gurin
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  2. Zsolt Gulácsi
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Gurin, P., Gulácsi, Z. Magnetic Properties of the Infinitely Repulsive Hubbard Model Near Half Filling. Czechoslovak Journal of Physics 52, 119–122 (2002). https://doi.org/10.1023/A:1014474302655

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  • DOI: https://doi.org/10.1023/A:1014474302655

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