Cooperative effect of phonons and electronic correlations for superconductivity in cobaltates

Physical Review B - Condensed Matter and Materials Physics

Volumn 72, Issue 2, 2005, Pages

  Foussats, A ^a   Greco, A ^a   Bejas, M ^a   Muramatsu, A ^b  

^a INSTITUTO DE FÍSICA ROSARIO   (Argentina)

^b UNIVERSITY OF STUTTGART   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 33749158852     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.72.020504     Document Type: Article

References (36)

1. K. Takada, Nature (London) NATUAS 0028-0836 10.1038/nature01450 422, 53 (2003).
2. R. E. Schaak, Nature (London) NATUAS 0028-0836 10.1038/nature01877 424, 527 (2003).
3. H. Sakurai, cond-mat/0408428, J. Phys. Soc. Jpn. (to be published).
4. G. Baskaran, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.91. 097003 91, 097003 (2003).
5. Hasan, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.92.246402 92, 246402 (2004);
6. H.-B. Yang, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.92. 246403 92, 246403 (2004);
7. H.-B. Yang, cond-mat/0501403 (unpublished).
8. D. J. Sing, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.68.020503 68, 020503 (R) (2003).
9. B. Kumar and B. S. Shastry, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.68.104508 68, 104508 (2003).
10. Q.-H. Wang, D.-H. Lee, and P. A. Lee, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.69.092504 69, 092504 (2004).
11. Y. Tanaka, Y. Yanase, and M. Ogata, J. Phys. Soc. Jpn. JUPSAU 0031-9015 10.1143/JPSJ.73.319 73, 319 (2004).
12. K. Kuroki, Y. Tanaka, and R. Arita, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.93.077001 93, 077001 (2004).
13. O. I. Motunich and P. A. Lee, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.70.024514 70, 024514 (2004).
14. T. Fujimoto, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.92. 047004 92, 047004 (2004).
15. T. Waki, cond-mat/0306036 (unpublished);
16. W. Higemoto, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.70.134508 70, 134508 (2004).
17. H. D. Yang, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.71.020504 71, 020504 (R) (2005).
18. J. Hwang, cond-mat/0405200 (unpublished);
19. N. Wang, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.93.237007 93, 237007 (2004).
20. A. Foussats and A. Greco, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.65.195107 65, 195107 (2002);
21. A. Foussats and A. Greco, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.70.205123 70, 205123 (2004).
22. J. Hubbard, Proc. R. Soc. London, Ser. A PRLAAZ 1364-5021 276, 238 (1963).
23. J. Merino, A. Greco, R. H. McKenzie, and M. Calandra, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.68.245121 68, 245121 (2003).
24. M. Johannes, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.93. 097005 93, 097005 (2004);
25. K. Kuroki, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.71.024506 71, 024506 (2005).
26. P. Zhang, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.93.236402 93, 236402 (2004).
27. N. P. Ong and R. J. Cava, Science SCIEAS 0036-8075 10.1126/science. 1099387 305, 52 (2004).
28. A. Foussats, A. Greco, M. Bejas, and A. Muramatsu (unpublished).
29. M. Dressel, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.90. 167002 90, 167002 (2003).
30. Fano anomalies suggest a non-negligible e-ph interaction [see S. Lupi, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.69.180506 69, 180506 (R) (2004)]. The value of λ is not known. We choose λ=0.4, which is between the weak and intermedium coupling.
31. M. L. Kulićc and R. Zeyher, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.49.4395 49, 4395 (1994).
32. R. Zeyher and M. L. Kulić, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.53.2850 53, 2850 (1996).
33. A. Greco and R. Zeyher, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.60.1296 60, 1296 (1999).
34. Z. Li, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.70.144518 70, 144518 (2004).
35. J. Frank, in Physical Properties of High-Temperature Superconductors IV, edited by, D. M. Ginsberg, (World Scientific, Singapore, 1994), p. 189.
36. C. Marianetti, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.92. 196405 92, 196405 (2004).