PMID: 11327979May 1, 2001Paper

Nagaoka ferromagnetism in the two-dimensional infinite-U Hubbard model

Physical Review Letters
F Becca, Sandro Sorella

Abstract

We present different numerical calculations based on variational quantum Monte Carlo simulations supporting a ferromagnetic ground state for finite and small hole densities in the two-dimensional infinite-U Hubbard model. Moreover, by studying the energies of different total spin sectors, these calculations strongly suggest that the paramagnetic phase is unstable against a phase with a partial polarization for large hole densities delta approximately 0.40 with evidence for a second-order transition to the paramagnetic large doping phase.

References

Aug 1, 1989·Physical Review. B, Condensed Matter·B Doucot, X G Wen
Sep 1, 1989·Physical Review. B, Condensed Matter·J A Riera, A P Young
Jun 1, 1990·Physical Review. B, Condensed Matter·A BarbieriA P Young
Mar 1, 1990·Physical Review. B, Condensed Matter·N Trivedi, D M Ceperley
Apr 1, 1992·Physical Review. B, Condensed Matter·K J Runge
Oct 12, 1992·Physical Review Letters·W O PutikkaM Ogata

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Citations

Apr 4, 2007·Proceedings of the National Academy of Sciences of the United States of America·Angela KoppSudip Chakravarty
Feb 21, 2006·Physical Review Letters·Yasuhiro Saiga, Masaki Oshikawa
May 1, 2012·Physical Review Letters·Li LiuSteven A Kivelson
Feb 1, 2008·Physical Review Letters·Yi-Fei WangZ D Wang

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