Scaling properties of the ferromagnetic state in the Hubbard model
Condensed Matter
2009-10-22 v1
Abstract
A numerical scaling analysis is used to show that Nagaoka's ferromagnetic state in two-dimensional Hubbard model with one hole is supersede by an antiferromagnetic (AF) state with a discontinuous jump in the total spin due to the AF coupling as the Hubbard is made finite. The same applies to the two-hole system, which has a spiral spin structure. We can show, via the scaling, that the crossover to an AF state is a precursor of a pathological coalescence of states having the minimum spin and Nagaoka's state at in the thermodynamic limit.
Keywords
Cite
@article{arxiv.cond-mat/9407036,
title = {Scaling properties of the ferromagnetic state in the Hubbard model},
author = {K. Kusakabe and H. Aoki},
journal= {arXiv preprint arXiv:cond-mat/9407036},
year = {2009}
}
Comments
10 pages, typeset in LATEX, KA-94-01, 3 figures available upon request at [email protected]