DOPING DEPENDENCE OF ON-SITE QUANTITIES IN THE 2-DIMENSIONAL HUBBARD-MODEL

Authors
MANCINI F MARRA S MATSUMOTO H
Citation
F. Mancini et al., DOPING DEPENDENCE OF ON-SITE QUANTITIES IN THE 2-DIMENSIONAL HUBBARD-MODEL, Physica. C, Superconductivity, 244(1-2), 1995, pp. 49-53
Citations number
16
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
244
Issue
1-2
Year of publication
1995
Pages
49 - 53
Database
ISI
SICI code
0921-4534(1995)244:1-2<49:DDOOQI>2.0.ZU;2-1
Abstract
The two-dimensional Hubbard model is studied by means of the composite operator approach. In a generalized mean-field approximation we calcu late local quantities, as the double occupancy and the magnetic moment , for various values of the particle density, repulsive Coulomb intera ction and temperature. Comparison with the results obtained by other a uthors by means of numerical analysis shows quite good agreement.