Superconductivity at the border of electron localization and itinerancy

Nature Communications

Volumn 4, Issue , 2013, Pages

  Yu, Rong ^a,b   Goswami, Pallab ^b,e   Si, Qimiao ^b   Nikolic, Predrag ^c   Zhu, Jian Xin ^d  

^a RENMIN UNIVERSITY OF CHINA   (China)

^b RICE UNIVERSITY   (United States)

^c GEORGE MASON UNIVERSITY   (United States)

^d LOS ALAMOS NATIONAL LABORATORY   (United States)

^e FLORIDA STATE UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

IRON; METAL; SELENIDE;

AMPLITUDE; ELECTRON; IRON; MAGMATISM; MAGNETIC FIELD; SELENIUM; SUPERCONDUCTIVITY;

AMPLITUDE MODULATION; ARTICLE; CONDUCTANCE; ELECTRON; MAGNETISM; SUPERCONDUCTOR; SURFACE PROPERTY;

EID: 84889585818     PISSN: None     EISSN: 20411723     Source Type: Journal    
DOI: 10.1038/ncomms3783     Document Type: Article

References (47)

1. Kamihara, Y., Watanabe, T., Hirano, M. & Hosono, H. Iron-based layered superconductor La[O1-xFx]FeAs (x=0.05-0.12) with Tc=26 K. J. Am. Chem. Soc. 130, 3296-3297 (2008 (Pubitemid 351456027)
2. Dai, P., Hu, J. & Dagotto, E. Magnetism and its microscopic origin in ironbased high-temperature superconductors. Nat. Phys. 8, 709-718 (2012
3. Qazilbash, M. M. et al. Electronic correlations in the iron pnictides. Nat. Phys. 5, 647-650 (2009
4. Anderson, P. W. Is there glue in cuprate superconductors Science 316, 1705-1707 (2007
5. Guo, J. et al. Superconductivity in the iron selenide KxFe2Se2 (0rxr1.0).Phys. Rev. B 82, 180520 (2010
6. Fang, M. et al. Fe-based superconductivity with Tc=31 K bordering an antiferromagnetic insulator in (Tl,K)FexSe2. Europhys. Lett. 94, 27009 (2011
7. Sun, L. et al. Re-emerging superconductivity at 48 Kelvin in iron chalcogenides. Nature 483, 67-69 (2012
8. Zhang, Y. et al. Nodeless superconducting gap in AxFe2Se2 (A=K,Cs) revealed by angle-resolved photoemission spectroscopy. Nat. Mater. 10, 273-277 (2011
9. Wang, X.-P. et al. Strong nodeless pairing on separate electron Fermi surface sheets in (Tl, K)Fe1.78Se2 probed by ARPES. Europhys. Lett. 93, 57001 (2011
10. Mou, D. et al. Distinct Fermi surface topology and nodeless superconducting gap in a (Tl0.58Rb0.42)Fe1.72Se2 superconductor. Phys. Rev. Lett. 106, 107001 (2011
11. Wang, F. et al. The electron pairing of KxFe2-ySe2. Europhys. Lett. 93, 57003 (2011
12. Maier, T. A., Graser, S., Hirschfeld, P. J. & Scalapino, D. J. d-wave pairing from spin fluctuations in the KxFe2-ySe2 superconductors. Phys. Rev. B 83, 100515 (2011
13. Khodas, M. & Chubukov, A. V. Interpocket pairing and gap symmetry in Febased superconductors with only electron pockets. Phys. Rev. Lett. 108, 247003 (2012
14. Wang, D. M., He, J. B., Xia, T.-L. & Chen, G. F. Effect of varying iron content on the transport properties of the potassium-intercalated iron selenide KxFe2-ySe2. Phys. Rev. B 83, 132502 (2011
15. Bao, W. et al. A novel large moment antiferromagnetic order in K0.8Fe1.6Se2 superconductor. Chin. Phys. Lett. 28, 086104 (2011
16. Wang, M. et al. Spin waves and magnetic exchange interactions in insulating Rb0.89Fe1.58Se2. Nat. Commun. 2, 580 (2011
17. Yu, R., Zhu, J.-X. & Si, Q. Mott transition in modulated lattices and parent insulator of (K,Tl)yFexSe2 superconductors. Phys. Rev. Lett. 106, 186401 (2011
18. Zhou, Y., Xu, D.-H., Zhang, F.-C. & Chen, W.-Q. Theory for superconductivity in (Tl,K)FexSe2 as a doped Mott insulator. Europhys. Lett. 95, 17003 (2011
19. Si, Q. & Abrahams, E. Strong correlations and magnetic frustration in the high Tc iron pnictides. Phys. Rev. Lett. 101, 076401 (2008
20. Si, Q., Abrahams, E., Dai, J. & Zhu, J.-X. Correlation effects in the iron pnictides. New. J. Phys. 11, 045001 (2009
21. Goswami, P., Nikolic, P. & Si, Q. Superconductivity in multi-orbital t-J1-J2 model and its implications for iron pnictides. Europhys. Lett. 91, 37006 (2010
22. Haule, K., Shim, J. H. & Kotliar, G. Correlated electronic structure of LaO1-xFxFeAs. Phys. Rev. Lett. 100, 226402 (2008
23. Seo, K., Bernevig, B. A. & Hu, J. Pairing symmetry in a two-orbital exchange coupling model of oxypnictides. Phys. Rev. Lett. 101, 206404 (2008
24. Moreo, A., Daghofer, M., Riera, J. A. & Dagotto, E. Properties of a two-orbital model for oxypnictide superconductors: magnetic order, B2g spin-singlet pairing channel, and its nodal structure. Phys. Rev. B 79, 134502 (2009
25. Berg, E., Kivelson, S. A. & Scalapino, D. J. A twisted ladder: relating the Fe superconductors to the high-Tc cuprates. New. J. Phys. 11, 085007 (2009
26. Lv, W., Krüger, F. & Phillips, P. Orbital ordering and unfrustrated (p,0) magnetism from degenerate double exchange in the iron pnictides. Phys. Rev. B 82, 045125 (2010
27. Graser, S., Maier, T. A., Hirschfeld, P. J. & Scalapino, D. J. Near-degeneracy of several pairing channels in multiorbital models for the Fe pnictides. New. J. Phys. 11, 025016 (2009
28. Sato, T. et al. Band structure and Fermi surface of an extremely overdoped ironbased superconductor KFe2As2. Phys. Rev. Lett. 107, 177005 (2011
29. Park, J. T. et al. Magnetic resonant mode in the low-energy spin-excitation spectrum of superconducting Rb2Fe4Se5 single crystals. Phys. Rev. Lett. 107, 177005 (2011
30. Xu, M. et al. Evidence for an s-wave superconducting gap in KxFe2-ySe2 from angle-resolved photoemission. Phys. Rev. B 85, 220504 (2012
31. Wang, X.-P. et al. Observation of an isotropic superconducting gap at the Brillouin zone center of Tl0.63K0.37Fe1.78Se2. Europhys. Lett. 99, 67001 (2012
32. Li, W. et al. Phase separation and magnetic order in K-doped iron selenide superconductor. Nat. Phys. 8, 126-130 (2012
33. Yu, R. & Si, Q. Orbital-selective Mott phase in multiorbital models for alkaline iron selenides K1-xFe2-ySe2. Phys. Rev. Lett. 110, 146402 (2013
34. Yi, M. et al. Observation of temperature-induced crossover to an orbitalselective Mott phase in AxFe2-ySe2 (A=K, Rb) superconductors. Phys. Rev. Lett. 110, 067003 (2013
35. Gao, P. et al.Pressure-induced insulator-metal transition and the pathway towards superconductivity in alkaline iron selenide compounds. Preprint at http://arXiv.org/abs/1209.1340 (2012
36. Li, W. et al.Orbital-Selective Mottness in KxFe2-ySe2 Superconductors Revealed by Pump-Probe Spectroscopy. Preprint at http://arxiv.org/abs/ 1306.5817 (2013
37. Zhao, J., Cao, H., Bourret-Courchesne, E., Lee, D.-H. & Birgeneau, R. J. Neutron-diffraction measurements of an antiferromagnetic semiconducting phase in the vicinity of the high-temperature superconducting state of KxFe2- ySe2. Phys. Rev. Lett. 109, 267003 (2012
38. Chen, F. et al. Electronic identification of the parental phases and mesoscopic phase separation of KxFe2-ySe2 superconductors. Phys. Rev. X 1, 021020 (2011
39. Cao, C. & Zhang, F.-C. Electronic structure of vacancy-ordered iron-selenide K0.5Fe1.75Se2. Phys. Rev. B 87, 161105 (2013
40. Wang, Q. Y. et al. Interface-induced high-temperature superconductivity in single unit-cell FeSe films on SrTiO3. Chin. Phys. Lett. 29, 037402 (2012
41. Liu, D. et al. Electronic origin of high-temperature superconductivity in singlelayer FeSe superconductor. Nat. Commun. 3, 931 (2012
42. Tan, S. et al. Interface-induced superconductivity and strain-dependent spin density waves in FeSe/SrTiO3 thin films. Nat. Mater. 12, 634-640 (2013
43. He, S. et al. Phase diagram and electronic indication of high-temperature superconductivity at 65K in single-layer FeSe films. Nat. Mater. 12, 605-610 (2013
44. Kotliar, G. Resonating valence bonds and d-wave superconductivity. Phys. Rev. B 37, 3664-3666 (1988
45. Yu, R., Goswami, P. & Si, Q. The magnetic phase diagram of an extended J1-J2 model on a modulated square lattice and its implications for the antiferromagnetic phase of KyFexSe2. Phys. Rev. B 84, 094451 (2011
46. Cao, C. & Dai, J. Block spin ground state and three-dimensionality of (K,Tl)yFe1.6Se2. Phys. Rev. Lett. 107, 056401 (2011
47. Zhao, J. et al. Spin waves and magnetic exchange interactions in CaFe2As2. Nat. Phys. 5, 555-560 (2009