Superconductivity in the two-band Hubbard model

Article

关键词: MEAN-FIELD THEORY;    INFINITE DIMENSIONS;    ORBITAL DEGENERACY;    INSULATOR-TRANSITION;    SYSTEMS;    METAL;    FERROMAGNETISM;    FERMIONS;    LATTICE;    STATE;   

DOI  :  10.1103/PhysRevB.91.085108

来源: SCIE

【 摘 要 】

We study the two-band Hubbard model in infinite dimensions by solving the dynamical mean-field equations with a strong coupling continuous-time quantum Monte Carlo method and show that an s-wave superconducting state can be stabilized in the repulsively interacting case. We discuss how this superconducting state competes with the metallic and paired Mott states. The effects of the Hund coupling and crystalline electric field are also addressed.

【 授权许可】

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