Vertex corrections in antiferromagnetic spin-fluctuation theories

Article

关键词: ANGLE-RESOLVED PHOTOEMISSION;    FERMI-LIQUID;    FLAT BANDS;    SUPERCONDUCTIVITY;    SINGULARITY;    YBA2CU3O7;    BEHAVIOR;   

DOI  :  10.1103/PhysRevB.56.7789

来源: SCIE

【 摘 要 】

We clarify the physical origin of the discrepancy between recent purely perturbative and self-consistent calculations of the vertex correction in the spin-fermion model for cuprates. We argue that perturbative calculations substantially overestimate the strength of the vertex corrections at moderate couplings.

【 授权许可】

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