Spin-triplet-wave pairing in a three-orbital model for iron pnictide superconductors
- 28 October 2008
- journal article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 78 (14)
- https://doi.org/10.1103/physrevb.78.144517
Abstract
We examine the possibility that the superconductivity in the newly discovered FeAs materials may be caused by the Coulomb interaction between d-electrons of the iron atoms. We find that when the Hund's rule ferromagnetic interaction is strong enough, the leading pairing instability is in spin-triplet p-wave channel in the weak coupling limit. The resulting superconducting gap has nodal lines on the 3D Fermi surfaces. The k dependent hybridization of several orbitals around a Fermi pocket is the key for the appearance of the spin-triplet p-wave pairing.Comment: 6 pages, 4 figureKeywords
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This publication has 27 references indexed in Scilit:
- Phase transitions in LaFeAsO: Structural, magnetic, elastic, and transport properties, heat capacity and Mössbauer spectraPhysical Review B, 2008
- Superconductivity at 52 K in iron based F doped layered quaternary compound Pr[O1–xFx]FeAsMaterials Research Innovations, 2008
- Competing orders and spin-density-wave instability in La(O 1−x F x )FeAsEurophysics Letters, 2008
- Superconductivity at 41 K and Its Competition with Spin-Density-Wave Instability in LayeredPhysical Review Letters, 2008
- Nodal Gap in Fe-Based Layered Superconductor LaO 0.9 F 0.1-δ FeAs Probed by Specific Heat MeasurementsChinese Physics Letters, 2008
- Magnetic order close to superconductivity in the iron-based layered LaO1-xF x FeAs systemsNature, 2008
- Superconductivity at 43 K in SmFeAsO1-xF xNature, 2008
- Superconductivity at 25 K in hole-doped (La 1-x Sr x )OFeAsEurophysics Letters, 2008
- Iron-Based Layered Superconductor La[O1-xFx]FeAs (x = 0.05−0.12) with Tc = 26 KJournal of the American Chemical Society, 2008
- Iron-Based Layered Superconductor: LaOFePJournal of the American Chemical Society, 2006