From local to nonlocal Fermi liquid in doped antiferromagnets

Article

关键词: HIGH-TEMPERATURE SUPERCONDUCTORS;    QUASI-PARTICLE DISPERSION;    2D HUBBARD-MODEL;    T-J-MODEL;    NORMAL-STATE;    PSEUDOGAPS;    DYNAMICS;    SYSTEMS;    HOLE;   

DOI  :  10.1103/PhysRevB.60.40

来源: SCIE

【 摘 要 】

The variation of single-particle spectral functions with doping is studied numerically within the t-J model. Results suggest that the corresponding self-energies change from local ones at the intermediate doping to strongly nonlocal ones for a weakly doped antiferromagnet. The nonlocality shows up most clearly in the pseudogap emerging in the density of states, due to the onset of short-range antiferromagnetic correlations. [S0163-1829(99)05925-1].

【 授权许可】

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