corner
corner
APS » Journals » Phys. Rev. Lett. » Volume 101 » Issue 8
< Previous Article | Next Article >

Phys. Rev. Lett. 101, 087004 (2008) [4 pages]

Unconventional Pairing Originating from the Disconnected Fermi Surfaces of Superconducting LaFeAsO1-xFx

Download: PDF (324 kB) Buy this article Export: BibTeX or EndNote (RIS)

Kazuhiko Kuroki1, Seiichiro Onari2, Ryotaro Arita3,*, Hidetomo Usui1, Yukio Tanaka2, Hiroshi Kontani4, and Hideo Aoki5
1Department of Applied Physics and Chemistry, The University of Electro -Communications, Chofu, Tokyo 182-8585, Japan
2Department of Applied Physics, Nagoya University, and CREST-JST, Nagoya 464-8603, Japan
3RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
4Department of Physics, Nagoya University, Nagoya 464-8602, Japan
5Department of Physics, University of Tokyo, Tokyo 113-0033, Japan

See Also: Erratum

Received 27 March 2008; published 22 August 2008

For a newly discovered iron-based high Tc superconductor LaFeAsO1-xFx, we have constructed a minimal model, where inclusion of all five Fe d bands is found to be necessary. The random-phase approximation is applied to the model to investigate the origin of superconductivity. We conclude that the multiple spin-fluctuation modes arising from the nesting across the disconnected Fermi surfaces realize an extended s-wave pairing, while d-wave pairing can also be another candidate.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.087004
DOI:
10.1103/PhysRevLett.101.087004
PACS:
74.20.−z, 74.25.Jb, 74.70.Dd

*Present Address: Department of Applied Physics, University of Tokyo, Hongo, Tokyo 113-8656, Japan.

See Also

Erratum: Kazuhiko Kuroki, Seiichiro Onari, Ryotaro Arita, Hidetomo Usui, Yukio Tanaka, Hiroshi Kontani, and Hideo Aoki, Erratum: Unconventional Pairing Originating from the Disconnected Fermi Surfaces of Superconducting LaFeAsO1-xFx [Phys. Rev. Lett. 101, 087004 (2008)], Phys. Rev. Lett. 102, 109902 (2009).

 
< Previous Article | Next Article >