Mixed State in t-U-J-V Model |
| B. Tobijaszewska and M. Bak
Solid State Theory Division, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland |
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| The t-U-J-V model in the U→∞ limit is treated by renormalized mean-field theory for arbitrary electron density. Superconductivity of s+id symmetry is found in the large parts of the phase diagram. Calculations also show a possibility of phase separation. |
| DOI: 10.12693/APhysPolA.115.135 PACS numbers: 74.20.-z, 74.20.Rp, 74.25.Dw, 71.10.Fd, 71.27.+a |