Close relationship between superconductivity and the bosonic mode in Ba 0.6 K 0.4 Fe 2 As 2 and Na(Fe 0.975 Co 0.025)As

Nature Physics

Volumn 9, Issue 1, 2013, Pages 42-48

  Wang, Zhenyu ^a,b   Yang, Huan ^a   Fang, Delong ^a   Shen, Bing ^b   Wang, Qiang Hua ^a   Shan, Lei ^b   Zhang, Chenglin ^c   Dai, Pengcheng ^b,c   Wen, Hai Hu ^a  

^a NANJING UNIVERSITY   (China)

^b INSTITUTE OF PHYSICS   (China)

^c UNIVERSITY OF TENNESSEE   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BOSONS; INORGANIC COMPOUNDS; VORTEX FLOW;

HIGH-TEMPERATURE SUPERCONDUCTIVITY; IRON PNICTIDE SUPERCONDUCTORS; SCANNING TUNNELLING SPECTROSCOPY; SPIN EXCITATION; SUPERCONDUCTING COHERENCE; SUPERCONDUCTING PAIRING; UNIVERSAL RATIOS; UNIVERSAL RELATIONSHIP;

SUPERCONDUCTING TRANSITION TEMPERATURE;

EID: 84871615891     PISSN: 17452473     EISSN: 17452481     Source Type: Journal    
DOI: 10.1038/nphys2478     Document Type: Article

References (46)

1. Rowell, J. M., Anderson, P. W. & Thompson, D. E. Image of the phonon spectrum in the tunneling characteristics between superconductors. Phys. Rev. Lett 10, 334-336 (1963
2. Schrieffer, J. R., Scalapino, D. J. & Wilkins, J. W. Effective tunneling density of states. Phys. Rev. Lett. 10, 336-339 (1963
3. Swihart, J. C., Scalapino, D. J. & Wada, Y. Solution of the gap equations for Pb, Hg, and Al. Phys. Rev. Lett. 14, 106-108 (1965
4. McMillan, W. L. & Rowell, J. M. Lead phonon spectrum calculated from superconducting density of states. Phys. Rev. Lett. 14, 108-111 (1965
5. Lee, J. et al. Interplay of electron-lattice interactions and superconductivity in Bi2Sr2CaCu2O8C. Nature 442, 546-550 (2006
6. Hwang, J., Timusk, T. & Carbotte, J. P. Scanning-Tunneling spectra of cuprates. Nature 446, E3-E4 (2007
7. Cuk, T. et al. A review of electron phonon coupling seen in the high-Tc superconductors by angle-resolved photoemission studies (ARPES). Phys. Stat. Sol. 242, 11-29 (2005
8. Niestemski, F. C. et al. A distinct bosonic mode in an electron-doped high-Transition-Temperature superconductors. Nature 450, 1058-1061 (2007
9. Wilson, S. D. et al. Resonance in the electron-doped high- Transitiontemperature superconductor Pr0:88LaCe0:12CuO4. Nature 442, 59-62 (2006
10. Jin, K., Butch, N. P., Kirshenbaum, K. & Greene, R. L. Link between spin fluctuations and electron pairing in copper oxide superconductors. Nature 476, 73-75 (2011
11. Mazin, I. I., Singh, D. J., Johannes, M. D. & Du, M. H. Unconventional sign-reversing superconductivity in LaFeAsO1xFx. Phys. Rev. Lett. 101, 057003 (2008
12. Kuroki, K. et al. Unconventional pairing originating from the disconnected Fermi surfaces of superconducting LaFeAsO1xFx. Phys. Rev. Lett. 101, 087004 (2008
13. Christianson, A. D. et al. Unconventional superconductivity in Ba0:6K0:4Fe2As2 from inelastic neutron scattering. Nature 456, 930-932 (2008
14. Hanaguri, T., Niitaka, S., Kuroki, K. & Takagi, K. Unconventional s-wave superconductivity in Fe(Se,Te). Science 328, 474-476 (2010
15. Shan, L. et al. Evidence of a spin resonance mode in the iron-based superconductor Ba0:6K0:4Fe2As2 from scanning tunneling spectroscopy. Phys. Rev. Lett. 108, 227002 (2012
16. Abanov, Ar., Chubukov, A. V., Eschrig, M., Norman, M. R. & Schmalian, J. The neutron resonance in the cuprates and its effect on fermionic excitations (What the resonance peak can do). Phys. Rev. Lett. 89, 177002 (2002
17. Kee, H. Y., Kivelson, S. A. & Aeppli, G. Spin-1 neutron resonance peak cannot account for electronic anomalies in the cuprate superconductors. Phys. Rev. Lett. 88, 257002 (2002
18. Eremin, I., Morr, D. K., Chubukov, A. V., Bennemann, K. H. & Norman, M. R. Novel neutron resonance mode in dx2y2-wave superconductors. Phys. Rev. Lett. 94, 147001 (2005
19. Balatsky, A. V. & Zhu, J. X. Local strong-coupling pairing in d-wave superconductors with inhomogeneous bosonic modes. Phys. Rev. B 74, 094517 (2006
20. Ding, H. et al. Electronic structure of optimally doped pnictide Ba0:6K0:4Fe2As2: A comprehensive ARPES investigation. J. Phys. Condens. Matter 23, 135701 (2011
21. Evtushinsky, D. V. et al. Fusion of bogoliubons in Ba0:6K0:4Fe2As2 and similarity of energy scales in high temperature superconductors. Preprint at http://arxiv.org/abs/1106.4584 (2011
22. Hanaguri, T. et al. Scanning tunneling microscopy/spectroscopy of vortices in LiFeAs. Phys. Rev. B 85, 214505 (2012
23. Dynes, R. C., Garno, J. P., Hertel, G. B. & Orlando, T. P. Tunneling study of superconductivity near the metal-insulator transition. Phys. Rev. Lett. 53, 2437-2440 (1984
24. Shan, L. et al. Evidence of multiple nodeless energy gaps in superconducting Ba0:6K0:4Fe2As2 single crystals from scanning tunneling spectroscopy. Phys. Rev. B 83, 060510 (2011
25. Yin, Y. et al. Scanning tunneling spectroscopy and vortex imaging in the iron pnictide superconductor BaFe1:8Co0:2As2. Phys. Rev. Lett. 102, 097002 (2009
26. Zhang, C. L. et al. Neutron scattering studies of spin excitations in hole-doped Ba0:67K0:33Fe2As2 superconductor. Sci. Rep. 1, 115 (2011
27. Hoffman, J. E. et al. Imaging quasiparticle interference in Bi2Sr2CaCu2O8C. Science 297, 1148-1151 (2002
28. Pan, S. H. et al. STM studies of the electronic structure of vortex cores in Bi2Sr2CaCu2O8C. Phys. Rev. Lett. 85, 1536-1539 (2000
29. Shan, L. et al. Observation of ordered vortices with Andreev bound states in Ba0:6K0:4Fe2As2. Nature Phys. 4, 325-331 (2011
30. Mazin, I. I.&Schmalian, J. Pairing symmetry and pairing state in ferropnictides: Theoretical overview. Physica C 469, 614-627 (2009
31. Hänke, T. et al. Probing unconventional superconductivity in LiFeAs by quasiparticle interference. Phys. Rev. Lett. 108, 127001 (2011
32. Yang, H. et al. Unexpected weak spatial variation of local density of states induced by individual Co impurity atoms in Na(Fe0:95Co0:05)As as revealed by scanning tunneling spectroscopy. Preprint at http://arxiv.org/abs/1203.3123 (2012
33. Liu, Z-H. et al. Unconventional superconducting gap in NaFe0:95Co0:05As observed by angle-resolved photoemission spectroscopy. Phys. Rev. B 84, 064519 (2011
34. Inosov, D. S. et al. Normal-state spin dynamics and temperature-dependent spin resonance energy in optimally doped BaFe1:85Co0:15As2. Nature Phys. 6, 178-181 (2010
35. Inosov, D. S. et al. Crossover from weak to strong pairing in unconventional superconductors. Phys. Rev. B 83, 214520 (2011
36. Christianson, A. D. et al. Static and dynamic magnetism in underdoped superconductor BaFe1:92Co0:08As2. Phys. Rev. Lett 103, 087002 (2009
37. Taylor, A. E. et al. Antiferromagnetic spin fluctuations in LiFeAs observed by neutron scattering. Phys. Rev. B 83, 220514 (2011
38. Mook, H. A. et al. Unusual relationship between magnetism and superconductivity in FeTe0:5Se0:5. Phys. Rev. Lett. 104, 187002 (2010
39. Qiu, Y. M. et al. Spin gap and resonance at the nesting wave vector in superconducting FeSe0:4Te0:6. Phys. Rev. Lett. 103, 067008 (2009
40. Babkevich, P. et al. Spin anisotropy of the resonance peak in superconducting FeSe0:5Te0:5: . Phys. Rev. B 83, 180506 (2011
41. Chi, S. X. et al. Inelastic neutron-scattering measurements of a threedimensional spin resonance in the FeAs-based BaFe1:9Ni0:1As2 superconductor. Phys. Rev. Lett. 102, 107006 (2009
42. Lumsden, M. D. et al. Two-dimensional resonant magnetic excitation in BaFe1:84Co0:16As2. Phys. Rev. Lett. 102, 107005 (2009
43. Wakimoto, S. et al. Degradation of superconductivity and spin fluctuations by electron overdoping in LaFeAsO1xFx. J. Phys. Soc. Jpn 79, 074715 (2010
44. Woo, H., Dai, P. C., Hayden, S. M., Mook, H. A. & Dahm, T. et al. Magnetic energy change available to superconducting condensation in optimally doped YBa2Cu3O6:95. Nature Phys. 2, 600-604 (2006
45. Abanov, Ar., Chubukov, A. V. & Schmalian, J. Fingerprints of spin mediated pairing in cuprates. J. Electron Spectros. Relat. Phenom. 117-118, 129-151 (2001
46. Castellan, J. P. et al. Effect of Fermi surface nesting on resonant spin excitations in Ba1xKxFe2As2. Phys. Rev. Lett. 107, 177003 (2011