Charge Kondo effect and superconductivity in the Falikov-Kimball model with pair hopping

Article

关键词: MEAN-FIELD THEORY;    INFINITE DIMENSIONS;    STATE PROPERTIES;    ANDERSON MODEL;    HUBBARD-MODEL;    VALENCE;    PEROVSKITE;    SYSTEMS;    LATTICE;   

DOI  :  10.1103/PhysRevB.97.125130

来源: SCIE

【 摘 要 】

We study the Falikov-Kimball model with the pair hopping between the conduction and localized bands to discuss how the charge Kondo effect is realized. By combining dynamical mean-field theory with the continuous time quantum Monte Carlo method, we clarify that the charge Kondo state survives even at zero temperature and this competes with the charge ordered and s-wave superconducting states. The role of the interorbital repulsion for the superconducting state is also addressed.

【 授权许可】

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