Evolution of the pairing pseudogap in the spectral function with interplane anisotropy

Article

关键词: ANGLE-RESOLVED PHOTOEMISSION;    ATTRACTIVE HUBBARD-MODEL;    NORMAL-STATE;    ELECTRONIC-STRUCTURE;    BI2SR2CACU2O8+DELTA;    SUPERCONDUCTORS;    GAP;   

DOI  :  10.1103/PhysRevB.59.1474

来源: SCIE

【 摘 要 】

We study the pairing pseudogap in the spectral function as a function of interplane coupling. The analytical expressions for the self-energy in the critical regime are obtained for any degree of anisotropy. The frequency dependence of Sigma(omega) is found to be qualitatively different in two and three dimensions, and the crossover from two to three dimensional behavior is discussed. In particular, by considering the anisotropy of the Fermi velocity and gap along the Fermi surface, we can qualitatively explain recent photoemission experiments on high temperature superconductors concerning the temperature dependent Fermi arcs seen in the pseudogap phase. [S0163-1829(99)00302-1].

【 授权许可】

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