Coexistence of s-wave Superconductivity and Antiferromagnetism

Abstract

We study the phase diagram of a new model that exhibits a first order transition between s-wave superconducting and antiferromagnetic phases. The model, a generalized Hubbard model augmented with competing spin-spin and pair-pair interactions, was investigated using the projector Quantum Monte Carlo method. Upon varying the Hubbard $U$ from attractive to repulsive we find a first order phase transition between superconducting and antiferromagnetic states.

arXiv comment4 pages

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• Spin and charge dynamics of the ferromagnetic and antiferromagnetic two-dimensional half-filled Kondo lattice model
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Cited by in corpus (8)

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• Electrical and Thermal Transport in Antiferromagnet-Superconductor Junctions
• Determinant quantum Monte Carlo for the half-filled Hubbard model with nonlocal density-density interactions
• Spontaneous particle-hole symmetry breaking of correlated fermions on the Lieb lattice
• Topological phase transitions with SO(4) symmetry in (2+1)d interacting Dirac fermions
• A functional renormalization group study of the two dimensional Su-Schrieffer-Heeger-Hubbard model
• Electronic orders on the kagome lattice at the lower Van Hove filling
• Intertwined fluctuations and isotope effects in the Hubbard-Holstein model on the square lattice from functional renormalization