Abstract
The square approximation in the cluster variation method is formulated for the t-J model. By using this approximation, we study the phase transition to a magnetically ordered state in the three-dimensional t-J model on a cubic lattice. The Néel order is shown to appear near half-filled region.
Original language | English |
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Pages (from-to) | 2909-2918 |
Number of pages | 10 |
Journal | journal of the physical society of japan |
Volume | 63 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1994 |
Keywords
- cluster variation method
- t-J model
ASJC Scopus subject areas
- Physics and Astronomy(all)