ANTIFERROMAGNETISM IN THE 2-DIMENSIONAL INFINITE-U HUBBARD-MODEL

Authors
SONG Z SHEN H
Citation
Z. Song et H. Shen, ANTIFERROMAGNETISM IN THE 2-DIMENSIONAL INFINITE-U HUBBARD-MODEL, Physical review. B, Condensed matter, 47(21), 1993, pp. 14576-14579
Citations number
7
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
47
Issue
21
Year of publication
1993
Pages
14576 - 14579
Database
ISI
SICI code
0163-1829(1993)47:21<14576:AIT2IH>2.0.ZU;2-Z
Abstract
The ground-state properties of the two-dimensional infinite- U Hubbard model with 1/4 hole concentration are studied with degenerate perturb ation theory and an exact diagonalization method for a (2 X 4)-site cl uster. We find that on a 2 X 4 lattice, the original model could be ma pped into a spin-3/2 antiferromagnetic Heisenberg model for the case o f two holes.