Journal
PHYSICAL REVIEW LETTERS
Volume 115, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.026402
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Funding
- Lundbeckfond fellowship [A9318]
- U.S. DOE [DEFG02-05ER46236]
- KITP under NSF [PHY11-25915]
- Lundbeck Foundation [R105-2012-9318] Funding Source: researchfish
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We provide a band structure with low-energy properties consistent with recent photoemission and quantum oscillation measurements on FeSe, assuming mean-field-like site- and/or bond-centered ferro-orbital ordering at the structural transition. We show how the resulting model provides a consistent explanation of the temperature dependence of the measured Knight shift and the spin-relaxation rate. Furthermore, the superconducting gap structure obtained from spin-fluctuation theory exhibits nodes on the electron pockets, consistent with the V-shaped density of states obtained by tunneling spectroscopy on this material, and the temperature dependence of the London penetration depth.
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