Anomalous correlation effects and unique phase diagram of electron-doped FeSe revealed by photoemission spectroscopy

Nature Communications

Volumn 7, Issue , 2016, Pages

  Wen, C H P ^a   Xu, H C ^a   Chen, C ^a   Huang, Z C ^a   Lou, X ^a   Pu, Y J ^a   Song, Q ^a   Xie, B P ^a   Abdel Hafiez, Mahmoud ^b,c   Chareev, D A ^d   Vasiliev, A N ^e   Peng, R ^a   Feng, D L ^a  

^a FUDAN UNIVERSITY   (China)

^b GOETHE UNIVERSITY   (Germany)

^c CENTER FOR HIGH PRESSURE SCIENCE AND TECHNOLOGY ADVANCED RESEARCH   (China)

^d INSTITUTE OF EXPERIMENTAL MINERALOGY   (Russian Federation)

^e MOSCOW STATE UNIVERSITY   (Russian Federation)

Author keywords

[No Author keywords available]

Indexed keywords

IRON; SELENIUM; SULFUR;

CORRELATION; ELECTRON; IRON; SELENIUM; SUPERCONDUCTIVITY;

ANGLE RESOLVED PHOTOEMISSION SPECTROSCOPY; ARTICLE; CONDUCTANCE; ELECTRON; FILM; SPECTROSCOPY; SUPERCONDUCTOR; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE;

EID: 84960344685     PISSN: None     EISSN: 20411723     Source Type: Journal    
DOI: 10.1038/ncomms10840     Document Type: Article

References (60)

1. 2 (0≤x≤1.0). Phys. Rev. B 82, 180520(R) (2010).
2. 2 (A=Li, Na, Ba, Sr, Ca, Yb, and Eu). Sci. Rep. 2, 426 (2012).
3. 0.2)OHFeSe. Nat. Mater. 14, 325-329 (2015).
4. 3. Chin. Phys. Lett. 29, 037402 (2012).
5. Liu, D. F. et al. Electronic origin of high-temperature superconductivity in single-layer FeSe superconductor. Nat. Commun. 3, 931 (2012).
6. 3 thin films. Nat. Mater. 12, 634-640 (2013).
7. He, S. et al. Phase diagram and electronic indication of high-temperature superconductivity at 65 K in single-layer FeSe films. Nat. Mater. 12, 605-610 (2013).
8. 3 Heterostructures Using Photoemission Spectroscopy. Phys. Rev. Lett. 112, 107001 (2014).
9. Peng, R. et al. Tuning the band structure and superconductivity in single-layer FeSe by interface engineering. Nat. Commun. 5, 5044 (2014).
10. 2 (A=K, Cs) revealed by angle-resolved photoemission spectroscopy. Nat. Mater. 10, 273-277 (2011).
11. 0.2)OHFeSe. Phys. Rev. B 92, 060504 (2015).
12. 2 Superconductors. Phys. Rev. X 1, 021020
13. 2 (A=K, Rb) Superconductors. Phys. Rev. Lett. 110, 067003 (2013).
14. 2. Europhys. Lett. 94, 27009 (2011).
15. 2 crystals. Europhys. Lett. 93, 47004 (2011).
16. 2. Phys. Rev. Lett. 109, 267003 (2012).
17. 2 as seen via transmission electron microscopy. Phys. Rev. B 83, 140505 (R) (2011).
18. 2. Phys. Rev. Lett. 109, 147003 (2012).
19. 5. Europhys. Lett. 111, 27004 (2015).
20. 2 with intrinsic phase separation. Phys. Rev. B 91, 020503 (2015).
21. 3 films. Proc. Natl Acad. Sci. USA 111, 18501-18506 (2014).
22. 3 films. Nat. Commun. 5, 5047 (2014).
23. 3. Nature 515, 245-248 (2014).
24. Miyata, Y. et al. High-temperature superconductivity in potassium-coated multilayer FeSe thin films. Nat. Mater. 14, 775-779 (2015).
25. Ye, Z. R. et al. Extraordinary doping effects on quasiparticle scattering and bandwidth in iron-based superconductors. Phys. Rev. X 4, 031041 (2014).
26. Zhang, Y. et al. Distinctive momentum dependence of the band reconstruction in the nematic state of FeSe thin film. Preprint at http://arxiv.org/abs/1503.01556 (2015).
27. Nakayama, K. et al. Reconstruction of band structure induced by electronic nematicity in an FeSe superconductor. Phys. Rev. Lett. 113, 237001 (2014).
28. 1-x. Phys. Rev. B 89, 220506(R) (2014).
29. Watson, M. D. et al. Emergence of the nematic electronic state in FeSe. Phys. Rev. B 91, 155106 (2015).
30. yz band splittings in FeSe. Phys. Rev. B 91, 214503 (2015).
31. 2. Chin. Sci. Bull. 57, 3829-3835 (2012).
32. Hsu, F. C. et al. Superconductivity in the PbO-type structure alpha-FeSe. Proc. Natl Acad. Sci. USA 105, 14262-14264 (2008).
33. + +) fluctuation. Preprint at http://arxiv.org/abs/1508.04605v1 (2015).
34. Abdel-Hafiez, M. et al. Superconducting properties of sulfur-doped iron selenide. Phys. Rev. B 91, 165109 (2015).
35. 3. Phys. Rev. Lett. 115, 017002 (2015).
36. 2. Nat. Phys. 8, 371-375 (2012).
37. Niu, X. H. et al. Identification of prototypical Brinkman-Rice Mott physics in a class of iron chalcogenides superconductors. Preprint at http://arxiv.org/abs/1506.04018 (2015).
38. Glasbrenner, J. K. et al. Effect of magnetic frustration on nematicity and superconductivity in iron chalcogenides. Nat. Phys. 11, 953-958 (2015).
39. Chang, C.-C. et al. Superconductivity in PbO-type tetragonal FeSe nanoparticles. Solid State Commun. 152, 649-652 (2012).
40. 1.01Se with superconductivity at 36.7 K under pressure. Nat. Mater. 8, 630-633 (2009).
41. Sun, L. et al. Re-emerging superconductivity at 48 kelvin in iron chalcogenides. Nature 483, 67-69 (2012).
42. 3. Nat. Mater. 14, 285-289 (2015).
43. de Medici, L. et al. Selective Mott physics as a key to iron superconductors. Phys. Rev. Lett. 112, 177001 (2014).
44. Georges, A. et al. Strong correlations from Hund's coupling. Annu. Rev. Condens. Matter Phys. 4, 137-178 (2013).
45. 2-related compounds. J. Phys. Soc. Jpn 83, 104703 (2014).
46. 1-xSe. Proc. Natl Acad. Sci. USA 111, 63-68 (2014).
47. Lei, B. et al. Gate-tuned superconductor-insulator transition in (Li, Fe)OHFeSe. Preprint at http://arxiv.org/abs/1503.02457v1 (2015).
48. Xu, H. C. et al. Direct observation of the bandwidth control mott transition in the nis2-xsex multiband system. Phys. Rev. Lett. 112, 087603 (2014).
49. Imada, M. et al. Metal-insulator transitions. Rev. Mod. Phys. 70, 1039 (1998).
50. Hanaguri, T. et al. Unconventional s-wave superconductivity in Fe(Se, Te). Science 328, 474-476 (2010).
51. 2 (A=K, Cs). Phys. Rev. X 1, 011009 (2011).
52. 2 as a doped Mott insulator. Europhys. Lett. 95, 17003 (2011).
53. Yang, F. et al. Fermiology, orbital order, orbital fluctuations, and Cooper pairing in iron-based superconductors. Phys. Rev. B 88, 100504 (2013).
54. 2 superconductors. Phys. Rev. B 83, 100515 (2011).
55. 2 superconductors. Phys. Rev. B 84, 024529 (2011).
56. Yin, Z. P. et al. Spin dynamics and orbital-antiphase pairing symmetry in ironbased superconductors. Nat. Phys. 10, 845-850 (2014).
57. Hu, J. P. et al. Iron-based superconductors as odd-parity superconductors. Phys. Rev. X 3, 031004 (2013).
58. Hirschfeld, P. J. et al. Gap symmetry and structure of Fe-based superconductors. Rep. Prog. Phys. 74, 124508 (2011).
59. 3 probed by scanning tunneling microscopy. Nat. Phys. 11, 946-952 (2015).
60. 1-x superconductors. Cryst. Eng. Comm. 15, 1989-1993 (2013).