Robust nodal superconductivity induced by isovalent doping in Ba(Fe 1-xRu x) 2As 2 and BaFe 2(As 1-xP x) 2

Physical Review X

Volumn 2, Issue 1, 2012, Pages 1-6

  Qiu, X ^a   Zhou, S Y ^a   Zhang, H ^a   Pan, B Y ^a   Hong, X C ^a   Dai, Y F ^a   Eom, Man Jin ^b   Kim, Jun Sung ^b   Ye, Z R ^a   Zhang, Y ^a   Feng, D L ^a   Li, S Y ^a  

^a FUDAN UNIVERSITY   (China)

^b Pohang University of Science and Technology (POSTECH)   (South Korea)

Author keywords

Condensed matter physics; Materials science; Superconductivity

Indexed keywords

IRON-BASED; NODAL SUPERCONDUCTORS; PNICTIDES; SUPERCONDUCTING GAPS; THEORETICAL MODELS; UNDERDOPED REGIME; ZERO FIELDS;

CONDENSED MATTER PHYSICS; DOPING (ADDITIVES); HIGH TEMPERATURE SUPERCONDUCTORS; MATERIALS SCIENCE;

SUPERCONDUCTIVITY;

EID: 84861693830     PISSN: None     EISSN: 21603308     Source Type: Journal    
DOI: 10.1103/PhysRevX.2.011010     Document Type: Article

References (44)

1. 1-xFx)FeAs(x=0:05-0:12) with Tc=26K, J. Am. Chem. Soc. 130, 3296 (2008).
2. J. Paglione and R. L. Greene, High-Temperature Superconductivity in Iron-Based Materials, Nature Phys. 6, 645 (2010).
3. Fa Wang and Dung-hai Lee, The Electron-Pairing Mechanism of Iron-Based Superconductors, Science 332, 200 (2011)
4. P. J. Hirschfeld, M. M. Korshunov, and I. I. Mazin, Gap Symmetry and Structure of Fe-Based Superconductors, Rep. Prog. Phys. 74, 124508 (2011), and references therein.
5. 2, Europhys. Lett. 83, 47001 (2008).
6. K. Terashima, Y. Sekiba, J. H. Bowen, K. Nakayama, T. Kawahara, T. Sato, P. Richard, Y.-M. Xu, L. J. Li, G. H. Cao, Z.-A. Xu, H. Ding, and T. Takahashi, Fermi Surface Nesting Induced Strong Pairing in Iron-Based Superconductors, Proc. Natl. Acad. Sci. U.S.A. 106, 7330 (2009).
7. 2: Evidence for a k-Dependent Superconducting Gap without Nodes, Phys. Rev. B 80, 140503(R) (2009).
8. 2 Probed by Quasiparticle Heat Transport, New J. Phys. 11, 093018 (2009).
9. 2: From Isotropic to a Strongly k-Dependent Gap Structure, Phys. Rev. Lett. 104, 067002 (2010).
10. 2, Phys. Rev. Lett. 104, 087005 (2010).
11. 2 from Magnetic Penetration-Depth Measurements, Phys. Rev. B 82, 014526 (2010).
12. 2 Single Crystal: Evidence for Nodeless Multiple Superconducting Gaps and Interband Interactions, Phys. Rev. B 81, 094520 (2010).
13. Yunkyu Bang, Volovik Effect in the ±s-Wave State for the Iron-Based Superconductors, Phys. Rev. Lett. 104, 217001 (2010).
14. J.-Ph. Reid, M. A. Tanatar, X.G. Luo, H. Shakeripour, S. Rene de Cotret, N. Doiron-Leyraud, J. Chang, B. Shen, H.-H.Wen, H. Kim, R. Prozorov, and L. Taillefer, Doping-Induced Vertical Line Nodes in the Superconducting Gap of the Iron Arsenide K-Ba122 from Directional Thermal Conductivity
15. 2, Phys. Rev. B 81, 020503(R) (2010).
16. 2 Single Crystals as Seen via Penetration Depth and Thermal Conductivity, Phys. Rev. B 81, 220501 (R) (2010).
17. J. D. Fletcher, A. Serafin, L. Malone, J. G. Analytis, J.-H. Chu, A. S. Erickson, I. R. Fisher, and A. Carrington, Evidence for a Nodal-Line Superconducting State in LaFePO, Phys. Rev. Lett. 102, 147001 (2009).
18. C.W. Hicks, T. M. Lippman, M. E. Huber, J.G. Analytis, J.-H. Chu, A. S. Erickson, I. R. Fisher, and K. A. Moler, Evidence for a Nodal Energy Gap in the Iron-Pnictide Superconductor LaFePO from Penetration Depth Measurements by Scanning SQUID Susceptometry, Phys. Rev. Lett. 103, 127003 (2009).
19. M. Yamashida, N. Nakata, Y. Senshu, S. Tonegawa, K. Ikada, K. Hashimoto, H. Sugawara, T. Shibauchi, and Y. Matsuda, Thermal Conductivity Measurements of the Energy-Gap Anisotropy of Superconducting LaFePO at Low Temperatures, Phys. Rev. B 80, 220509(R) (2009).
20. K. Hashimoto, S. Kasahara, R. Katsumata, Y. Mizukami, M. Yamashita, H. Ikeda, T. Terashima, A. Carrington, Y. Matsuda, and T. Shibauchi, Nodal versus Nodeless Behaviors of the Order Parameters of LiFeP and LiFeAs Superconductors from Magnetic Penetration-Depth Measurements, Phys. Rev. Lett. 108, 047003 (2012).
21. c Nodal Pairings in the Iron-Based Superconductors, Phys. Rev. B 79, 224511 (2009).
22. F. Wang, H. Zhai, and D.-H. Lee, Nodes in the Gap Function of LaFePO, the Gap Function of the Fe(Se, Te) Systems, and the STM Signature of the s±Pairing, Phys. Rev. B 81, 184512 (2010).
23. R. Thomale, C. Platt, W. Hanke, and B. A. Bernevig, Mechanism for Explaining Differences in the Order Parameters of FeAs-Based and FeP-Based Pnictide Superconductors, Phys. Rev. Lett. 106, 187003 (2011).
24. 2, J. Phys. Soc. Jpn. 80, 013710 (2011).
25. Y. H. Su, C. Setty, Z.Q. Wang, and J. P. Hu, Inter-Layer Superconducting Pairing Induced c-Axis Nodal Lines in Iron-Based Superconductors
26. 2, Phys. Rev. B 81, 174512 (2010).
27. 2 Single Crystals, Phys. Rev. B 81, 224503 (2010).
28. 2 Single Crystals, Phys. Rev. B 82, 014534 (2010).
29. 2 in a Wide Range of Isovalent Ru Substitution, Phys. Rev. B 85, 024536 (2012).
30. 2.
31. 2 Superconductors, Phys. Rev. B 81, 184519 (2010).
32. H. Shakeripour, C. Petrovic, and L. Taillefer, Heat Transport as a Probe of Superconducting Gap Structure, New J. Phys. 11, 055065 (2009).
33. C. Proust, E. Boaknin, R.W. Hill, L. Taillefer, and A. P. Mackenzie, Heat Transport in a Strongly Overdoped Cuprate: Fermi Liquid and a Pure d-Wave BCS Superconductor, Phys. Rev. Lett. 89, 147003 (2002).
34. G. E. Volovik, Superconductivity with Lines of GAP Nodes: Density of States in the Vortex, JETP Lett. 58, 469 (1993) [http://www.jetpletters.ac.ru/ps/1189/article_17954.shtml
35. 2 from c-Axis Heat Transport Measurements, Phys. Rev. B 82, 064501 (2010).
36. 2, Phys. Rev. Lett. 107, 117001 (2011).
37. S. Maiti, M. M. Korshunov, T.A. Maier, P. J. Hirschfeld, and A.V. Chubukov, Evolution of the Superconducting State of Fe-Based Compounds with Doping, Phys. Rev. Lett. 107, 147002 (2011).
38. 57Fe Mössbauer Spectroscopy Study of the 7 K Superconductor LaFePO, Z. Naturforsch. B 63, 1057 (2008) [arXiv:0805.1208].
39. 2, J. Phys. Condens. Matter 21, 382203 (2009).
40. D. H. Lu, M. Yi, S.-K. Mo, A. S. Erickson, J. Analytis, J.-H. Chu, D. J. Singh, Z. Hussain, T. H. Geballe, I. R. Fisher, and Z.-X. Shen, Electronic Structure of the Iron-Based Superconductor LaOFeP, Nature (London) 455, 81 (2008).
41. 2, Phys. Rev. Lett. 105, 087001 (2010).
42. 2?, Phys. Rev. Lett. 107, 267002 (2011).
43. C. Putzke, A. I. Coldea, I. Guillamon, D. Vignolles, A. McCollam, D. LeBoeuf, M. D. Watson, I. I. Mazin, S. Kasahara, T. Terashima, T. Shibauchi, Y. Matsuda, and A. Carrington, de Haas-van Alphen Study of the Fermi Surfaces of Superconducting LiFeP and LiFeAs, Phys. Rev. Lett. 108, 047002 (2012).
44. 2