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Phase diagram of the three-dimensional Hubbard model at half filling

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Abstract:

We investigate the phase diagram of the three-dimensional Hubbard model at half filling using quantum Monte Carlo (QMC) simulations. The antiferromagnetic Néel temperature is determined from the specific heat maximum in combination with finite-size scaling of the magnetic structure factor. Our results interpolate smoothly between the asymptotic solutions for weak and strong coupling, respectively, in contrast to previous QMC simulations. The location of the metal-insulator transition in the paramagnetic phase above is determined using the electronic compressibility as criterion.

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Authors and Affiliations

  1. Institute of Physics, University of Augsburg, Universitätsstraße 1, 86135 Augsburg, Germany, , , , , , DE

    R. Staudt & M. Dzierzawa

  2. Institute of Physics, University of Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany, , , , , , DE

    A. Muramatsu

Authors
  1. R. Staudt
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  2. M. Dzierzawa
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  3. A. Muramatsu
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Received 11 April 2000 and Revised in final form 29 June 2000

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Staudt, R., Dzierzawa, M. & Muramatsu, A. Phase diagram of the three-dimensional Hubbard model at half filling. Eur. Phys. J. B 17, 411–415 (2000). https://doi.org/10.1007/s100510070120

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  • DOI: https://doi.org/10.1007/s100510070120

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