Extended s± scenario for the nuclear spin-lattice relaxation rate in superconducting pnictides

Physical Review B - Condensed Matter and Materials Physics

Volumn 78, Issue 13, 2008, Pages

  Parker, D ^a,b,f   Dolgov, O V ^c   Korshunov, M M ^a,d   Golubov, A A ^e   Mazin, I I ^f  

^a MAX PLANCK INSTITUT FÜR PHYSIK KOMPLEXER SYSTEME   (Germany)

^b MAX PLANCK INSTITUTE FOR CHEMICAL PHYSICS OF SOLIDS   (Germany)

^c MAX PLANCK INSTITUT FÜR FESTKÖRPERFORSCHUNG   (Germany)

^d KIRENSKY INSTITUTE OF PHYSICS   (Russian Federation)

^e UNIVERSITY OF TWENTE   (Netherlands)

^f NAVAL RESEARCH LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 55149103292     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.78.134524     Document Type: Article

References (36)

1. Y. Kamihara, H. Hiramatsu, M. Hirano, R. Kawamura, H. Yanagi, T. Kamiya, and H. Hosono, J. Am. Chem. Soc. 10.1021/ja800073m 130, 3296 (2008).
2. Y. Y. Chen, Z. Tesanovic, R. H. Liu, X. H. Chen, and C. L. Chien, Nature (London) 10.1038/nature07081 453, 1224 (2008).
3. K. A. Yates, L. F. Cohen, Z.-A. Ren, J. Yang, W. Lu, X.-L. Dong, and Z.-X. Zhao, Supercond. Sci. Technol. 10.1088/0953-2048/21/9/092003 21, 092003 (2008).
4. R. S. Gonnelli, D. Daghero, M. Tortello, G. A. Ummarino, V. A. Stepanov, J. S. Kim, and R. K. Kremer, arXiv:0807.3149 (unpublished).
5. L. Zhao, H. Liu, W. Zhang, J. Meng, X. Jia, G. Liu, X. Dong, G. F. Chen, J. L. Luo, N. L. Wang, W. Lu, G. Wang, Y. Zhou, Y. Zhu, X. Wang, Z. Zhao, Z. Xu, C. Chen, and X. J. Zhou, arXiv:0807.0398 (unpublished).
6. H. Ding, P. Richard, K. Nakayama, K. Sugawara, T. Arakane, Y. Sekiba, A. Takayama, S. Souma, T. Sato, T. Takahashi, Z. Wang, X. Dai, Z. Fang, G. F. Chen, J. L. Luo, and N. L. Wang, Europhys. Lett. 10.1209/0295-5075/83/47001 83, 47001 (2008).
7. T. Kondo, A. F. Santander-Syro, O. Copie, C. Liu, M. E. Tillman, E. D. Mun, J. Schmalian, S. L. Bud'ko, M. A. Tanatar, P. C. Canfield, and A. Kaminski, arXiv:0807.0815 (unpublished).
8. C. Martin, R. T. Gordon, M. A. Tanatar, M. D. Vannette, M. E. Tillman, E. D. Mun, P. C. Canfield, V. G. Kogan, G. D. Samolyuk, J. Schmalian, and R. Prozorov, arXiv:0807.0876 (unpublished).
9. K. Hashimoto, M. Ishikado, T. Shibauchi, H. Kito, T. Kato, A. Iyo, K. Ikada, H. Eisaki, R. Okazaki, S. Shamoto, H. Shishido, and Y. Matsuda, arXiv:0806.3149 (unpublished).
10. L. Malone, J. D. Fletcher, A. Serafin, A. Carrington, N. D. Zhigadlo, Z. Bukowski, S. Katrych, and J. Karpinski, arXiv:0806.3908 (unpublished).
11. C. W. Hicks, T. M. Lippman, K. A. Moler, M. E. Huber, Z. A. Ren, and Z. X. Zhao, arXiv:0807.0467 (unpublished).
12. H.-J. Grafe, D. Paar, G. Lang, N. J. Curro, G. Behr, J. Werner, J. Hamann-Borrero, C. Hess, N. Leps, R. Klingeler, and B. Büchner, Phys. Rev. Lett. 10.1103/PhysRevLett.101.047003 101, 047003 (2008).
13. Y. Nakai, K. Ishida, Y. Kamihara, M. Hirano, and H. Hosono, J. Phys. Soc. Jpn. 10.1143/JPSJ.77.073701 77, 073701 (2008).
14. K. Matano, Z. A. Ren, X. L. Dong, L. L. Sun, Z. X. Ghao, and G.-q. Zheng, Europhys. Lett. 10.1209/0295-5075/83/57001 83, 57001 (2008).
15. H. Mukuda, N. Terasaki, H. Kinouchi, M. Yashima, Y. Kitaoka, S. Suzuki, S. Miyasaka, S. Tajima, K. Miyazawa, P. M. Shirage, H. Kito, H. Eisaki, and A. Iyo, J. Phys. Soc. Jpn. 10.1143/JPSJ.77.093704 77, 093704 (2008).
16. K. Ishida, invited talk at COFUS'08 conference in Dresden, June 30-July 4, 2008 (unpublished).
17. In the weak-coupling limit, the gap ratio at T→ Tc in the s± model is N1 / N2, where Ni are densities of states. At T→0, in the lowest order in the effective coupling constant λ (neglecting the intraband coupling), the following relation can be derived (the derivation will be published in a forthcoming publication): Δ1 / Δ2 ≈ N1 / N2 [1+λlog (N1 / N2) /4+λ (N2 / N1 - N1 / N2) /2]. LDA calculations yield Ne / Nh <1.2; therefore, Δ1 and Δ2 differ by less than 10%.
18. I. I. Mazin, D. J. Singh, M. D. Johannes, and M. H. Du, Phys. Rev. Lett. 10.1103/PhysRevLett.101.057003 101, 057003 (2008).
19. K. Kuroki, S. Onari, R. Arita, H. Usui, Y. Tanaka, H. Kontani, and H. Aoki, Phys. Rev. Lett. 10.1103/PhysRevLett.101.087004 101, 087004 (2008).
20. M. M. Korshunov and I. E. Eremin, arXiv:0804.1793, Phys. Rev. B (to be published).
21. M. M. Korshunov and I. E. Eremin, Europhys. Lett. 10.1209/0295-5075/83/ 67003 83, 67003 (2008).
22. First principles calculations of the Knight shift, using the standard WIEN2K package, shows [I. I. Mazin (unpublished)] that the Fermi contact interaction is definitely dominating in the hyperfine field on the La, Fe, and O sites. The situation is less clear for As, as the calculations yield a dipole field comparable with the Fermi contact one.
23. J. R. Schrieffer, Theory of Superconductivity (Perseus, Reading, 1999).
24. M. Fibich, Phys. Rev. Lett. 10.1103/PhysRevLett.14.561 14, 561 (1965).
25. M. Fibich, Phys. Rev. Lett. 10.1103/PhysRevLett.14.621.2 14, 621 (E) (1965).
26. K. V. Samokhin and B. Mitrović, Phys. Rev. B 10.1103/PhysRevB.72. 134511 72, 134511 (2005).
27. B. Mitrović and K. V. Samokhin, Phys. Rev. B 10.1103/PhysRevB.74. 144510 74, 144510 (2006).
28. A. A. Golubov and I. I. Mazin, Phys. Rev. B 10.1103/PhysRevB.55.15146 55, 15146 (1997).
29. O. V. Dolgov, A. A. Golubov, and A. E. Koshelev, Solid State Commun. 10.1016/0038-1098(89)90883-1 72, 81 (1989).
30. P. B. Allen and D. Rainer, Nature (London) 10.1038/349396a0 349, 396 (1991).
31. G. Preosti and P. Muzikar, Phys. Rev. B 10.1103/PhysRevB.54.3489 54, 3489 (1996).
32. J. Yang, D. Huvonen, U. Nagel, T. Room, N. Ni, P. C. Canfield, S. L. Budko, J. P. Carbotte, and T. Timusk, arXiv:0807.1040 (unpublished).
33. M. L. Kulić and O. V. Dolgov, Phys. Rev. B 10.1103/PhysRevB.60. 13062 60, 13062 (1999).
34. Y. Senga and H. Kontani, arXiv:0809.0374 (unpublished).
35. A. V. Chubukov, D. V. Efremov, and I. Eremin, Phys. Rev. B 78, 134512 (2008). 10.1103/PhysRevB.78.134512
36. Y. Bang and H.-Y. Choi, arXiv:0808.0302 (unpublished).