# Phase separation and competition of superconductivity and magnetism in the two-dimensional Hubbard model: From strong to weak coupling

@article{Aichhorn2007PhaseSA, title={Phase separation and competition of superconductivity and magnetism in the two-dimensional Hubbard model: From strong to weak coupling}, author={Markus Aichhorn and Enrico Arrigoni and Michael Potthoff and Werner Hanke}, journal={Physical Review B}, year={2007}, volume={76}, pages={224509} }

Cooperation and competition between the antiferromagnetic, $d$-wave superconducting, and Mott-insulating states are explored for the two-dimensional Hubbard model including nearest and next-nearest-neighbor hoppings at zero temperature. Using the variational cluster approach with clusters of different shapes and sizes up to 10 sites, it is found that the doping-driven transition from a phase with microscopic coexistence of antiferromagnetism and superconductivity to a purely superconducting…

## 39 Citations

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