The ground state of a strongly correlated fermion system in a magnetic field

Authors
Kudasov, YB
Citation
Yb. Kudasov, The ground state of a strongly correlated fermion system in a magnetic field, PHYS SOL ST, 43(8), 2001, pp. 1552-1555
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF THE SOLID STATE
ISSN journal
10637834 → ACNP
Volume
43
Issue
8
Year of publication
2001
Pages
1552 - 1555
Database
ISI
SICI code
1063-7834(2001)43:8<1552:TGSOAS>2.0.ZU;2-N
Abstract
A new variational method is used to investigate the ground state of the Hub bard model with a half-filled band for a one-dimensional chain, a planar sq uare lattice, and a simple cubic lattice. A metamagnetic transition is foun d to occur in a one-dimensional chain and a simple square lattice. A simple cubic lattice does not undergo the metamagnetic transition. (C) 2001 MAIK "Nauka/Interperiodica".