ANTIFERROMAGNETISM IN THE HUBBARD-MODEL

Authors
MIRONOV GI
Citation
Gi. Mironov, ANTIFERROMAGNETISM IN THE HUBBARD-MODEL, Physics of the solid state, 39(9), 1997, pp. 1420-1424
Citations number
14
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physics of the solid state → ACNP
ISSN journal
10637834
Volume
39
Issue
9
Year of publication
1997
Pages
1420 - 1424
Database
ISI
SICI code
1063-7834(1997)39:9<1420:AITH>2.0.ZU;2-T
Abstract
The energy spectrum of the two-sublattice Hubbard model is obtained in the static-fluctuation approximation. It is shown how the structure o f the energy spectrum is modified as the parameters of the Hubbard mod el are varied. ?The ground state of the simple Hubbard model of dimens ion d=2 is the dielectric antiferromagnetic state. The author derives a consistency equation for the magnetization, which has an antiferroma gnetic solution. (C) 1997 American Institute of Physics.