Dynamical mean-field theory study of stripe order and d-wave superconductivity in the two-dimensional Hubbard model
Tuomas I. Vanhala, Päivi Törmä
DOI 10.1103/PhysRevB.97.075112 · Physical Review B
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Abstract
We use cellular dynamical mean-field theory with extended unit cells to study the ground state of the two-dimensional repulsive Hubbard model at finite doping. We calculate the energy of states where d-wave superconductivity coexists with spatially nonuniform magnetic and charge order and find that they are energetically favored in a large doping region as compared to the uniform solution. We also study the spatial form of the density and the superconducting and magnetic order parameters at different doping values.
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