Finite-temperature NLCE calculations find nearest-neighbor ferromagnetic correlations and Nagaoka polarons in the square-lattice Hubbard model for dopings up to about 33 percent at large U/t.
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Finite-Temperature Kinetic Ferromagnetism in the Square Lattice Hubbard Model
Finite-temperature NLCE calculations find nearest-neighbor ferromagnetic correlations and Nagaoka polarons in the square-lattice Hubbard model for dopings up to about 33 percent at large U/t.