Gutzwiller wave-function approach to spiral magnetic order in the two-dimensional Hubbard model: A variational Monte Carlo study |
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| Authors: | M Dzierzawa R Frésard |
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| Institution: | (1) Institut für Theorie der Kondensierten Materie, Universität Karlsruhe (TH), Physikhochhaus, W-7500 Karlsruhe, Germany;(2) Present address: Institut de Physique Théorique, Université de Fribourg, Pérolles, CH-1700 Fribourg, Switzerland |
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| 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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