Quantum Monte Carlo Study of Pairing Symmetry and Correlation in Iron-based Superconductors

Abstract

We perform a systematic quantum Monte Carlo study of the pairing correlation in the $S_4$ symmetric microscopic model for iron-based superconductors. It is found that the pairing with an extensive s-wave symmetry robustly dominates over other pairings at low temperature in reasonable parameter region. The pairing susceptibility, the effective pairing interaction and the $(\pi ,0)$antiferromagnetic correlation strongly increase as the on-site Coulomb interaction increases, indicating the importance of the effect of electron-electron correlation. Our non-biased numerical results provide a unified understanding of superconducting mechanism in iron-pnictides and iron-chalcogenides and demonstrate that the superconductivity is driven by strong electron-electron correlation effects.

Accepted for publication as a Letter in Physical Review Letters, and more discussions are added

References in corpus (40)

• Unconventional sign-reversing superconductivity in LaFeAsO_(1-x)F_x
• Magnetic Order versus superconductivity in the Iron-based layered La(O1-xFx)FeAs systems
• Superconductivity at 43 K in Samarium-arsenide Oxides $SmFeAs{O}_{1-x}{F}_x$
• The Puzzle of High Temperature Superconductivity in Layered Iron Pnictides and Chalcogenides
• Unconventional pairing originating from disconnected Fermi surfaces in superconducting LaFeAsO${}_{1-x}$F${}_x$}
• Gap symmetry and structure of Fe-based superconductors
• Superconductivity at 41 K and its competition with spin-density-wave instability in layered CeO${}_{1-x}$F${}_x$FeAs
• Observation of Fermi-surface-dependent nodeless superconducting gaps in Ba0.6K0.4Fe2As2
• Magnetism, superconductivity, and pairing symmetry in Fe-based superconductors
• Strong Correlations and Magnetic Frustration in the High Tc Iron Pnictides
• Competing Orders and Spin-Density-Wave Instability in La(O${}_{1-x}$F${}_x$)FeAs
• Theory of Electron Nematic Order in LaOFeAs
• Funtional Renormalization Group Study of the Pairing Symmetry and Pairing Mechanism of the FeAs Based High Temperature Superconductors
• A Numerical Renormalization Group Study of the Superconducting and Spin Density Wave Instabilities in MFeAsO${}_{1-x}$F${}_x$ Compounds
• Heavily electron-doped electronic structure and isotropic superconducting gap in AxFe2Se2 (A=K,Cs)
• Spin Waves and Magnetic Exchange Interactions in CaFe2As2
• Pairing Symmetry in a Two-Orbital Exchange Coupling Model of Oxypnictides
• Antiferromagnetic superexchange interactions in LaOFeAs
• Distinct Fermi Surface Topology and Nodeless Superconducting Gap in (Tl0.58Rb0.42)Fe1.72Se2 Superconductor
• Fe-based superconductors: an angle-resolved photoemission spectroscopy perspective
• Exotic d-wave superconductivity in strongly hole doped K(x)Ba(1-x)Fe2As2
• Strong nodeless pairing on separate electron Fermi surface sheets in (Tl, K)Fe${}_{1.78}$Se${}_2$ probed by ARPES
• Local antiferromagnetic exchange and collaborative Fermi surface as key ingredients of high temperature superconductors
• Electronic structure of Fe1.04(Te0.66Se0.34)
• Valley density-wave and multiband superconductivity in Fe-pnictides
• Spin waves in the $(\pi ,0)$ magnetically ordered iron chalcogenide Fe${}_{1.05}$Te
• Spin Waves and magnetic exchange interactions in insulating Rb${}_{0.89}$Fe${}_{1.58}$Se${}_2$
• Evolution of symmetry and structure of the gap in Fe-based superconductors with doping and interactions
• Neutron-Diffraction Measurements of an Antiferromagnetic Semiconducting Phase in the Vicinity of the High-Temperature Superconducting State of K${}_x$Fe${}_{2-y}$Se${}_2$
• Angle-resolved photoemission evidence of s-wave superconducting gap in KxFe2-ySe2 superconductor
• ARPES studies of the electronic structure of LaOFe(P,As)
• $S_4$ Symmetric Microscopic Model for Iron-Based Superconductors
• An unified minimum effective model of magnetism in iron-based superconductors
• Is Fermi-surface nesting the origin of superconductivity in iron pnictides?: A fluctuation-exchange-approximation study
• Surface and bulk electronic structures of LaOFeAs studied by angle resolved photoemission spectroscopy
• Controllability of ferromagnetism in graphene
• Observation of an isotropic superconducting gap at the Brillouin zone center of Tl${}_{0.63}$K${}_{0.37}$Fe${}_{1.78}$Se${}_2$
• S-wave superconductivity with orbital dependent sign change in the checkerboard models of iron-based superconductors
• Properties of a diagonal 2-orbital ladder model of the Fe-pnictide superconductors
• (PI,0) antiferromagnetic spin excitations in superconducting Rb0.82Fe1.68Se2

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• Tuning superconducting pairing symmetry via a staggered potential in the doped honeycomb Hubbard model
• Magnetic fluctuations near the Van Hove singularity in the kagome-lattice Hubbard model at finite doping
• Dual role of stripe phase on superconducting correlation in a bilayer square lattice