Dynamics and mechanism of oxygen annealing in Fe1+yTe 0.6Se0.4single crystal

Scientific Reports

Volumn 4, Issue , 2014, Pages

  Sun, Yue ^a,b   Tsuchiya, Yuji ^a   Taen, Toshihiro ^a   Yamada, Tatsuhiro ^a   Pyon, Sunseng ^a   Sugimoto, Akira ^c   Ekino, Toshikazu ^c   Shi, Zhixiang ^b   Tamegai, Tsuyoshi ^a  

^a UNIVERSITY OF TOKYO   (Japan)

^b Southeast University   (China)

^c HIROSHIMA UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 84898758021     PISSN: None     EISSN: 20452322     Source Type: Journal    
DOI: 10.1038/srep04585     Document Type: Article

References (54)

1. 1-x. Phys. Rev. B 79, 094521 (2009).
2. 0.39. Phys. Rev. B 80, 092502 (2009).
3. c 5 37K). Phys. Rev. B 80, 064506 (2009).
4. 1.01Se with superconductivity at 36.7 K under pressure. Nat. Mater. 8, 630-633 (2009).
5. 2 (0 ≤ x ≤ 1.0). Phys. Rev. B 82, 180520 (2010).
6. Burrard-Lucas, M. et al. Enhancement of the superconducting transition temperature of FeSe by intercalation of a molecular spacer layer. Nat. Mater. 12, 15-19 (2013).
7. Sun, L. et al. Re-emerging superconductivity at 48 kelvin in iron chalcogenides. Nature 483, 67-69 (2012).
8. 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).
9. Raghu, S., Qi, X. L., Liu, C. X., Scalapino, D. J. &Zhang, S. C. Minimal two-band model of the superconducting iron oxypnictides. Phys. Rev. B 77, 220503 (2008).
10. Subedi, A., Zhang, L., Singh, D. J. &Du, M. H. Density functional study of FeS, FeSe, and FeTe: Electronic structure, magnetism, phonons, and superconductivity. Phys. Rev. B 78, 134514 (2008).
11. 1+xTe/Se Superconductor. Phys. Rev. Lett. 103, 037002 (2009).
12. 0.34. Phys. Rev. B 81, 014526 (2010).
13. 0.45. Phys. Rev. B 85, 094506 (2012).
14. x. Nat. Mater. 9, 718-720 (2010).
15. Bao, W. et al. Tunable (δπ, δπ)-Type Antiferromagnetic Order in α-Fe(Te,Se) Superconductors. Phys. Rev. Lett. 102, 247001 (2009).
16. 1-x. Phys. Rev. B 79, 054503 (2009).
17. 0.55 revealed by angle-resolved specific heat. Nat. Commun. 1, 112 (2010).
18. 0.5. Phys. Rev. B 81, 224520 (2010).
19. 0.5. Phys. Rev. B 81, 092510 (2010).
20. 0.5 superconducting films. New J. Phys. 15, 013032 (2013).
21. 1-xSex single crystals from ultralow temperature penetration depth measurements. Phys. Rev. B 88, 104502 (2013).
22. x (0.6 ≤ x ≤ 1) Single Crystals: Strong-Coupling Superconductivity, Strong Electron-Correlation, and Inhomogeneity. J. Phys. Soc. Jpn. 81, 054708 (2012).
23. x (0.5 ≤ x ≤ 1) Single Crystals. J. Phys. Soc. Jpn. 79, 084711 (2010).
24. 1-xSex. Phys. Rev. B 80, 174509 (2009).
25. 1-xSex single crystals. Supercond. Sci. Technol. 24, 035012 (2011).
26. 0.5) thin films. Phys. Rev. B 81, 054515 (2010).
27. 0.75 by varying the iron content. Phys. Rev. B 82, 212504 (2010).
28. 1+xTe: Magnetism and doping. Phys. Rev. B 79, 012506 (2009).
29. Wen, J., Xu, G., Gu, G., Tranquada, J. M. &Birgeneau, R. J. Interplay between magnetism and superconductivity in iron-chalcogenide superconductors: crystal growth and characterizations. Rep. Prog. Phys. 74, 124503 (2011).
30. 2 wires and bulks. Nat. Mater. 11, 682-685 (2012).
31. 0.5 polycrystals with a high transport critical current density. Supercond. Sci. Technol. 24, 075025 (2011).
32. x. Phys. Rev. B 85, 064504 (2012).
33. x ironbased superconductor. Solid State Commun. 152, 1135-1138 (2012).
34. 0.4. Supercond. Sci. Technol. 26, 015015 (2013).
35. 0.3. Chem. Sci. 2, 1782-1787 (2011).
36. x Annealed in Te Vapor. J. Phys. Soc. Jpn. 82, 093705 (2013).
37. x Induced by Annealing in Se and S Vapor. J. Phys. Soc. Jpn. 82, 115002 (2013).
38. Roth, B. J., Sepulveda, N. G.&Wikswo, J. P. Using a magnetometer to image a twodimensional current distribution. J. Appl. Phys. 65, 361-372 (1989).
39. y. J Solid State Chem. 183, 769-775 (2010).
40. 0.2. Europhys. Lett. 90, 57002 (2010).
41. x system with fewer excess Fe atoms. Phys. Rev. B 84, 224506 (2011).
42. Singh, D. J. Superconductivity and magnetism in 11-structure iron chalcogenides in relation to the iron pnictides. Sci. Technol. Adv. Mat. 13, 054304 (2012).
43. x superconductors: A combined STM plus LEED study. Phys. Rev. B 80, 140507 (2009).
44. Hanaguri, T., Niitaka, S., Kuroki, K. &Takagi, H. Unconventional s-Wave Superconductivity in Fe(Se,Te). Science 328, 474-476 (2010).
45. x observed by scanning tunneling spectroscopy. Phys. Rev. B 80, 180507 (2009).
46. Ukita, R., Sugimoto, A. &Ekino, T. Scanning tunneling microscopy on ironchalcogenide superconductor Fe(Se,Te) single crystal. Physica C 471, 622-624 (2011).
47. Ukita, R., Sugimoto, A. &Ekino, T. Scanning-tunneling microscopy and breakjunction spectroscopy on the superconducting Fe(Se,Te) single crystal. Physica C 484, 22-26 (2013).
48. 0.5 single crystals. Phys. Rev. B 82, 144523 (2010).
49. 0.43) single crystal. Phys. Rev. B 83, 134521 (2011).
50. x. Supercond. Sci. Technol. 23, 054001 (2010).
51. Komiya, S., Hanawa, M., Tsukada, I. &Maeda, A. Effect of Vacuum Annealing on Superconductivity in Fe(Se,Te) Single Crystals. J. Phys. Soc. Jpn. 82, 064710 (2013).
52. x. Phys. Rev. B 80, 104506 (2009).
53. 0.45. Phys. Rev. B 81, 180508 (2010).
54. Sugimoto, A., Ekino, T. &Eisaki, H. Nanoscale modulation of local barrier height on Bi-based cuprate superconductors observed by scanning tunneling microscopy/spectroscopy. J. Phys. Soc. Jpn. 77, 043705 (2008).