Abstract
The magnetic groundstate properties of the two-dimensional Hubbard model are investigated using generalized Gutzwiller wave-functions with spiral magnetic order. Employing variational Monte Carlo simulations these wave-functions are treated without approximations on finite lattices. The resulting phase diagram shows para-, ferro-, antiferro- and spiral magnetic phases of different types.
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Dzierzawa, M., Frésard, R. Gutzwiller wave-function approach to spiral magnetic order in the two-dimensional Hubbard model: A variational Monte Carlo study. Z. Physik B - Condensed Matter 91, 245–250 (1993). https://doi.org/10.1007/BF01315242
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DOI: https://doi.org/10.1007/BF01315242