Superconductivity-induced optical anomaly in an iron arsenide

Nature Communications

Volumn 2, Issue 1, 2011, Pages

  Charnukha, A ^a   Popovich, P ^a   Matiks, Y ^a   Sun, D L ^a   Lin, C T ^a   Yaresko, A N ^a   Keimer, B ^a   Boris, A V ^a,b  

^a MAX PLANCK INSTITUT FÜR FESTKÖRPERFORSCHUNG   (Germany)

^b LOUGHBOROUGH UNIVERSITY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

ARSENIC DERIVATIVE; BARIUM DERIVATIVE; IRON ARSENIDE; IRON DERIVATIVE; POTASSIUM DERIVATIVE; UNCLASSIFIED DRUG;

ARTICLE; CONDUCTANCE; DENSITY FUNCTIONAL THEORY; ENERGY; SUPERCONDUCTOR;

EID: 79952350457     PISSN: None     EISSN: 20411723     Source Type: Journal    
DOI: 10.1038/ncomms1223     Document Type: Article

References (31)

1. Allender, D., Bray, J. & Bardeen, J. Model for an exciton mechanism of superconductivity. Phys. Rev. B 7, 1020-1029 (1973).
2. Little, W. A. Possibility of synthesizing an organic superconductor. Phys. Rev. 134,A1416-A1424 (1964)
3. Ginzburg, V. L. Concerning surface superconductivity Sov. Phys. JETP 20, 1549 (1965).
4. Littlewood, P. B. et al. Models of coherent exciton condensation. J. Phys. Condens. Matter 16, S3597-S3620 (2004).
5. Hirsch, J. E. & Marsiglio, F. Superconducting state in an oxygen hole metal. Phys. Rev. B 39, 11515-11525 (1989).
6. c superconductors. Rev. Mod. Phys. 77, 721-779 (2005).
7. c superconductors.Phys. Rev. B 81,245111 (2010).
8. Holcomb, M. J., Perry, C L., Collman, J. P. & Little, W. A. T ermal-dif erence ref ectance spectroscopy of the high-temperature cuprate superconductors. Phys. Rev. B 53, 6734-6751 (1996).
9. 69. Science 304, 708-710 (2004). (Pubitemid 38560871)
10. 8. Phys. Rev. B 72, 144503 (2005).
11. Toschi, A. et al. Temperature dependence of the optical spectral weight in the cuprates: role of electron correlations. Phys. Rev. Lett. 95, 097002 (2005).
12. Haule, K. & Kotliar, G. Strongly correlated superconductivity: a plaquette dynamical mean-f eld theory study Phys. Rev. B 76, 104509 (2007).
13. Mazin,I.I. Superconductivity gets an iron boost. Nature 464, 183-186 (2010).
14. x an electron-phonon superconductor? Phys. Rev. Lett. 101, 026403 (2008).
15. x. Phys. Rev. Lett. 101, 057003 (2008).
16. 2 single crystals: evidence for a multiband strong-coupling superconducting state. Phys. Rev. Lett. 105,027003 (2010).
17. c=37K. Phys. Rev. Lett. 101, 107004 (2008).
18. Maldague, P. F. Optical spectrum of a Hubbard chain. Phys. Rev. B 16, 2437-2446 (1977).
19. Hirsch, J. Apparent violation of the conductivity sum rule in certain superconductors. Phys. C 199, 305-310 (1992). (Pubitemid 23578097)
20. x)2 revealed by de Haas-van Alphen efect. Phys. Rev. Lett. 105, 207004 (2010).
21. 2 determined by the de Haas-van Alphen efect. Phys. Rev. Lett. 103, 076401 (2009).
22. 2 family of iron-pnictide superconductors. Phys. Rev. B 80, 024515 (2009).
23. 2. Phys. Rev. B 80, 092501 (2009).
24. 2(A=Ba, Sr) as revealed by optical spectroscopy Phys. Rev. Lett. 101, 257005 (2008).
25. 2. Phys. Rev. Lett. 104, 057002(2010).
26. Tinkham, M. Introduction to Superconductivity 2nd edn (McGraw-Hill, 1995).
27. Dobryakov, A. L., Farztdinov, V. M., Lozovik, Y. E. & Letokhov, V. S. Energy gap in the superconductor optical spectrum. Opt. Commun. 105, 309-314 (1994).
28. Suhl, H., Matthias, B. T. & Walker, L. R. Bardeen-Cooper-Schrief er theory of superconductivity in the case of overlapping bands. Phys. Rev. Lett. 3, 552-554 (1959).
29. Berciu, M., Elfmov, I. & Sawatzky, G. A. Electronic polarons and bipolarons in iron-based superconductors: the role of anions. Phys. Rev. B 79,214507 (2009).
30. Sawatzky, G. A., Elfmov, I. S., van den Brink, J. & Zaanen, J. Heavy-anion solvation of polarity f uctuations in pnictides. Europhys. Lett. 86, 17006 (2009).
31. 2 (A = Ba, Sr). J. Supercond. NovelMagn. doi: 10.1007/s10948-010-1123-z (2011).