APPLICATION OF CLUSTER VARIATION METHOD TO 3-DIMENSIONAL T-J MODEL

Authors
TANAKA K TAKANE Y EBISAWA H MORITA T
Citation
K. Tanaka et al., APPLICATION OF CLUSTER VARIATION METHOD TO 3-DIMENSIONAL T-J MODEL, Journal of the Physical Society of Japan, 63(8), 1994, pp. 2909-2918
Citations number
32
Categorie Soggetti
Physics
Journal title
Journal of the Physical Society of Japan → ACNP
ISSN journal
00319015
Volume
63
Issue
8
Year of publication
1994
Pages
2909 - 2918
Database
ISI
SICI code
0031-9015(1994)63:8<2909:AOCVMT>2.0.ZU;2-X
Abstract
The square approximation in the cluster variation method is formulated for the t-J model. By using this approximation, we study the phase tr ansition to a magnetically ordered state in the three-dimensional t-J model on a cubic lattice. The Neel order is shown to appear near half- filled region.