Possible Phase Diagram of a t-J Ladder Model

Journal of the Physical Society of Japan

Volumn 65, Issue 5, 1996, Pages 1146-1149

  Sano, Kazuhiro ^a  

^a MIE UNIVERSITY   (Japan)

Author keywords

Electronic structure; Phase diagram; Spin gap; Superconductivity; T j ladder model

Indexed keywords

EID: 0030544054     PISSN: 00319015     EISSN: None     Source Type: Journal    
DOI: 10.1143/JPSJ.65.1146     Document Type: Article

References (25)

1. M. Takano, Z. Hiroi, M. Azuraa and Y. Takeda: Jpn. J. Appl. Phys. 7 (1992) 3.
2. K. Ishida, Y. Kitaoka, K. Asayama, M. Azuma, Z. Hiroi and M. Takano: J. Phys. Soc. Jpn. 63 (1994) 3222.
3. T. Barnes and J. Riera: Phys. Rev. B 50 (1994) 6817.
4. E. Dagotto, J. Riera and D. Scalapino: Phys. Rev. B 45 (1992) 5744.
5. S. Gopalan, T. M. Rice and M. Sigrist: Phys. Rev. B 49 (1994) 8901.
6. M. Troyer, H. Tsunetsugu and D. Würtz: Phys. Rev. B 50 (1994) 13515.
7. H. Tsunetsugu, M. Troyer and T. M. Rice: Phys. Rev. B 49 (1994) 16078.
8. H. Tsunetsugu, M. Troyer and T. M. Rice: Phys. Rev. B 51 (1995) 16456.
9. D. Poilblanc, D. J. Scalapino and W. Harike: Phys. Rev. B 52 (1995) 6796.
10. M. Troyer, H. Tsunetsugu and T. M. Rice: preprint, (condmat 9510150).
11. C. A. Hayward, D. Poilblanc, R. M. Noack, D. J. Scalapino and W. Hanke: Phys. Rev. Lett. 75 (1995) 926.
12. F. D. M. Haldane: Phys. Rev. Lett. 45 (1980) 1358.
13. F. D. M. Haldane: J. Phys. C 14 (1981) 2585.
14. K. Sano and Y. Ono: Phys. Rev. B 51 (1995) 1175.
15. C. A. Hayward and D. Poilblanc: preprint (cond-mat 9509123).
16. M. Ogata, M. U. Luchini, S. Sorella and F. F. Assaad: Phys. Rev. Lett. 66 (1991) 2388.
17. H. J. Schulz: Phys. Rev. B 53 (1996) R2959.
18. L. Balents and M. P. A. Fisher: preprint (NSF-ITP-9523).
19. H. J. Schulz: Phys. Rev. Lett. 64 (1990) 2831.
20. Detailed analysis for the t-J ladder is shown in ref. 15.
21. H. Yokoyama and M. Ogata: Phys. Rev. Lett. 67 (1991) 3610.
22. The same situation has been found in a one-dimensional d-p model (ref. 14) and a two-band supersymmetric t-J model (T. Itakura and N. Kawakami: J. Phys. Soc. Jpn. 64 (1995) 2321).
23. CDW = 1. They call it the duality relation.
24. ρ using eq. (6).
25. ρ becomes 0.5.