Quantum Spin Liquid Intertwining Nematic and Superconducting Order in Fese
Jian-Huang She, Michael J. Lawler, Eun-Ah Kim
DOI 10.1103/PhysRevLett.121.237002 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Despite its seemingly simple composition and structure, the pairing mechanism of FeSe remains an open problem due to several striking phenomena. Among them are nematic order without magnetic order, nodeless gap and unusual inelastic neutron spectra with a broad continuum, and gap anisotropy consistent with orbital selection of unknown origin. Here we propose a microscopic description of a nematic quantum spin liquid that reproduces key features of neutron spectra. We then study how the spin fluctuations of the local moments lead to pairing within a spin-fermion model. We find the resulting superconducting order parameter to be nodeless s±d wave within each domain. Further we show that orbital dependent Kondo-like coupling can readily capture observed gap anisotropy. Our prediction calls for inelastic neutron scattering in a detwinned sample.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| FeSe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Unconventional superconductivity mediated by nematic fluctuations in a multiorbital system: Application to doped FeSe
similarity 0.94Kazi Ranjibul Islam & Andrey Chubukov
Source status unknown — claims are unverified
Orbital-selective superconductivity in the nematic phase of FeSe
similarity 0.94Haoyu Hu et al.
Source status unknown — claims are unverified
Impurity states and cooperative magnetic order in Fe-based superconductors
similarity 0.94Maria N. Gastiasoro et al.
Source status unknown — claims are unverified
Nonlinear dynamics of driven superconductors with dissipation
similarity 0.94H. P. Ojeda Collado et al.
Source status unknown — claims are unverified
Vortex flow anisotropy in nematic superconductors
similarity 0.94F. Castillo Menegotto et al.
Source status unknown — claims are unverified
Nematicity and superconductivity: Competition versus cooperation
similarity 0.94Xiao Chen et al.
Source status unknown — claims are unverified