Journal of Superconductivity and Novel Magnetism

, Volume 26, Issue 8, pp 2665–2668 | Cite as

Three-orbital Model for Fe-Pnictides

Original Paper


We formulate and study the three-orbital model for iron-based superconductors. Results for the band structure, Fermi surface, and the spin susceptibility in both normal and superconducting s ± states are presented. We also discuss the pairing interaction and show that the dominant part of it should come from the intraorbital scattering.


Fe-based superconductors Spin susceptibility Low-energy model 



Partial support was provided by the Presisium of RAS program “Quantum mesoscopical and disordered structures” N 20.7, Grant “Leading scientific schools of Russia” (NSh 1044-2012.2), RFBR (Grant No. 12-02-31534 and 13-02-01395), Program of SB RAS #44, FCP Scientific and Research-and-Educational Personnel of Innovative Russia for 2009–2013 (GK 16.740.12.0731), and the Siberian Federal University (Theme N F-11). I.E. acknowledges support of the SFB Transregio 12, Merkur Foundation, and German Academic Exchange Service (DAAD PPP USA No. 50750339). M.M.K. acknowledges support from The Dynasty Foundation and ICFPM.


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • M. M. Korshunov
    • 1
    • 2
  • Y. N. Togushova
    • 2
  • I. Eremin
    • 3
    • 4
  1. 1.L.V. Kirensky Institute of PhysicsKrasnoyarskRussia
  2. 2.Siberian Federal UniversityKrasnoyarskRussia
  3. 3.Institut für Theoretische Physik IIIRuhr-Universität BochumBochumGermany
  4. 4.Kazan Federal UniversityKazanRussia

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