Calorimetric evidence of multiband superconductivity in Ba ( Fe0.925 Co0.075 ) 2 As2 single crystals

Physical Review B - Condensed Matter and Materials Physics

Volumn 81, Issue 6, 2010, Pages

  Hardy, F ^a   Wolf, T ^a   Fisher, R A ^b   Eder, R ^a   Schweiss, P ^a   Adelmann, P ^a   V Lohneysen H ^a   Meingast, C ^a  

^a KARLSRUHE INSTITUTE OF TECHNOLOGY   (Germany)

^b LAWRENCE BERKELEY NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 77954391666     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.81.060501     Document Type: Article

References (42)

1. Y. Kamihara, T. Watanabe, M. Hirano, and H. Hosono, J. Am. Chem. Soc. 130, 3296 (2008). 10.1021/ja800073m
2. M. Rotter, M. Pangerl, M. Tegel, and D. Johrendt, Angew. Chem. Int. Ed. 47, 7949 (2008). 10.1002/anie.200803641
3. A. S. Sefat, R. Jin, M. A. McGuire, B. C. Sales, D. J. Singh, and D. Mandrus, Phys. Rev. Lett. 101, 117004 (2008). 10.1103/PhysRevLett.101.117004
4. I. I. Mazin, D. J. Singh, M. D. Johannes, and M. H. Du, Phys. Rev. Lett. 101, 057003 (2008). 10.1103/PhysRevLett.101.057003
5. V. Cvetkovic and Z. Tesanovic, EPL 85, 37002 (2009). 10.1209/0295-5075/ 85/37002
6. K. Kuroki, S. Onari, R. Arita, H. Usui, Y. Tanaka, H. Kon-tani, and H. Aoki, Phys. Rev. Lett. 101, 087004 (2008). 10.1103/PhysRevLett.101.087004
7. Y. Bang and H.-Y. Choi, Phys. Rev. B 78, 134523 (2008). 10.1103/PhysRevB.78.134523
8. K. Terashima, Proc. Natl. Acad. Sci. U.S.A. 106, 7330 (2009). 10.1073/pnas.0900469106
9. P. Samuely, Z. Pribulová, P. Szabó, G. Pristá š, S. L. Bud'ko, and P. C. Canfield, Physica C 469, 507 (2009). 10.1016/j.physc.2009.03.037
10. R. T. Gordon, C. Martin, H. Kim, N. Ni, M. A. Tanatar, J. Schmalian, I. I. Mazin, S. L. Bud'ko, P. C. Canfield, and R. Prozorov, Phys. Rev. B 79, 100506 (R) (2009). 10.1103/PhysRevB.79.100506
11. G. Mu, H. Luo, Z. Wang, L. Shan, C. Ren, and H.-H. Wen, Phys. Rev. B 79, 174501 (2009). 10.1103/PhysRevB.79.174501
12. C. Martin, R. T. Gordon, M. A. Tanatar, H. Kim, N. Ni, S. L. Bud'ko, P. C. Canfield, H. Luo, H. H. Wen, Z. Wang, A. B. Vorontsov, V. G. Kogan, and R. Prozorov, Phys. Rev. B 80, 020501 (R) (2009). 10.1103/PhysRevB.80.020501
13. D. Parker, M. G. Vavilov, A. V. Chubukov, and I. I. Mazin, Phys. Rev. B 80, 100508 (R) (2009). 10.1103/PhysRevB.80.100508
14. R. A. Fisher, G. Li, J. C. Lashley, F. Bouquet, N. E. Phillips, D. G. Hinks, J. D. Jorgensen, and G. W. Crab-tree, Physica C 385, 180 (2003). 10.1016/S0921-4534(02)02316-X
15. F. Bouquet, Y. Wang, R. A. Fisher, D. G. Hinks, J. D. Jorgensen, A. Junod, and N. E. Phillips, Europhys. Lett. 56, 856 (2001). 10.1209/epl/i2001- 00598-7
16. U. Welp, Physica C 469, 575 (2009). 10.1016/j.physc.2009.03.011
17. L. Ding, C. He, J. K. Dong, T. Wu, R. H. Liu, X. H. Chen, and S. Y. Li, Phys. Rev. B 77, 180510 (R) (2008). 10.1103/PhysRevB.77.180510
18. S. L. Bud'ko, N. Ni, and P. C. Canfield, Phys. Rev. B 79, 220516 (R) (2009). 10.1103/PhysRevB.79.220516
19. J.-H. Chu, J. G. Analytis, C. Kucharczyk, and I. R. Fisher, Phys. Rev. B 79, 014506 (2009). 10.1103/PhysRevB.79.014506
20. N. Ni, M. E. Tillman, J.-Q. Yan, A. Kracher, S.-T. Han-nahs, S. L. Bud'ko, and P. C. Canfield, Phys. Rev. B 78, 214515 (2008). 10.1103/PhysRevB.78. 214515
21. D. Reznik, Phys. Rev. B 80, 214534 (2009). 10.1103/PhysRevB.80.214534
22. F. Hardy (unpublished).
23. K. Haule and G. Kotliar, Proceedings of the International Conference on Magnetism in Karlsruhe (unpublished).
24. G. Mu, B. Zeng, P. Cheng, Z. Wang, L. Fang, B. Shen, L. Shan, C. Ren, and H. Wen, arXiv:0906.4513 (unpublished).
25. R. A. Fisher, B. Buffeteau, R. Calemczuk, K. W. Dennis, T. E. Hargreaves, C. Marcenat, R. W. McCallum, A. S. O'Connor, N. E. Phillips, and A. Schilling, Phys. Rev. B 61, 1473 (2000). 10.1103/PhysRevB.61.1473
26. A. Amato, R. A. Fisher, N. E. Phillips, and J. B. Torrance, Physica B 165-166, 1337 (1990). 10.1016/S0921-4526(09)80254-8
27. Y. Machida, K. Tomokuni, T. Isono, K. Izawa, Y. Naka-jima, and T. Tamegai, J. Phys. Soc. Jpn. 78, 073705 (2009). 10.1143/JPSJ.78.073705
28. N. Oeschler, R. A. Fisher, N. E. Phillips, J. E. Gordon, M.-L. Foo, and R. J. Cava, Phys. Rev. B 78, 054528 (2008). 10.1103/PhysRevB.78.054528
29. H. Padamsee, J. E. Neighbor, and C. A. Shiffman, J. Low Temp. Phys. 12, 387 (1973). 10.1007/BF00654872
30. A. Y. Liu, I. I. Mazin, and J. Kortus, Phys. Rev. Lett. 87, 087005 (2001). 10.1103/PhysRevLett.87.087005
31. O. V. Dolgov, R. K. Kremer, J. Kortus, A. A. Golubov, and S. V. Shulga, Phys. Rev. B 72, 024504 (2005). 10.1103/PhysRevB.72.024504
32. V. Z. Kresin and S. A. Wolf, Physica C 169, 476 (1990). 10.1016/0921-4534(90)90595-6
33. G. Q. Zheng, K. Matano, S. Kawasaki, Z. A. Ren, Z. X. Zhao, G. F. Chen, J. L. Luo, N. L. Wang, and C. T. Lin, Proceedings of the International Conference on Magnetism in Karlsruhe (unpublished).
34. T. J. Williams, Phys. Rev. B 80, 094501 (2009). 10.1103/PhysRevB.80. 094501
35. C. L. Huang, J.-Y. Lin, Y. T. Chang, C. P. Sun, H. Y. Shen, C. C. Chou, H. Berger, T. K. Lee, and H. D. Yang, Phys. Rev. B 76, 212504 (2007). 10.1103/PhysRevB.76.212504
36. E. Boaknin, Phys. Rev. Lett. 90, 117003 (2003). 10.1103/PhysRevLett.90. 117003
37. T. Yokoya, T. Kiss, A. Chainani, S. Shin, M. Nohara, and H. Takagi, Science 294, 2518 (2001). 10.1126/science.1065068
38. O. V. Dolgov, I. I. Mazin, D. Parker, and A. A. Golubov, Phys. Rev. B 79, 060502 (R) (2009). 10.1103/PhysRevB.79.060502
39. L. Benfatto, E. Cappelluti, and C. Castellani, Phys. Rev. B 80, 214522 (2009). 10.1103/PhysRevB.80.214522
40. A. A. Golubov and I. I. Mazin, Phys. Rev. B 55, 15146 (1997). 10.1103/PhysRevB.55.15146
41. We assumed a cylindrical Fermi surface. For this geometry, d x 2 - y 2 and d x y order parameters exhibit the same temperature-dependent specific heat.
42. with the constraint that γ 1 / γ n + γ 2 / γ n = 1.