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From local to nonlocal Fermi liquid in doped antiferromagnets

P. Prelovsek·J. Jaklic·K. Bedell
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Abstract

The variation of single-particle spectral functions with doping is studied numerically within the t-J model. It is shown that 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.

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P. Prelovsek, J. Jaklic, K. Bedell. 1998-06-16. From local to nonlocal Fermi liquid in doped antiferromagnets. https://doi.org/10.1103/physrevb.60.40

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