Abstract
Square lattice Hubbard model is investigated near half-filled in the limit of large U. A slave-fermion scheme is used, where electron operators are replaced by bose operators with auxiliary fermi operators. The ground state by a mean field approximation with RVB order parameter for spin shows long-range antiferromagnetic order, which is incommensurate except for half-filled case.
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© 1989 Springer-Verlag Berlin, Heidelberg
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Yoshioka, D. (1989). Slave-Fermion Mean Field Theory of the Hubbard Model. In: Fukuyama, H., Maekawa, S., Malozemoff, A.P. (eds) Strong Correlation and Superconductivity. Springer Series in Solid-State Sciences, vol 89. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83836-1_13
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DOI: https://doi.org/10.1007/978-3-642-83836-1_13
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-83838-5
Online ISBN: 978-3-642-83836-1
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