From local to nonlocal Fermi liquid in doped antiferromagnets

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.

4 pages, 3 Postscript figures, revtex, submitted to Phys.Rev.Lett

References in corpus (8)

• Correlated Electrons in High Temperature Superconductors
• Quasiparticle Dispersion of the 2D Hubbard Model: From an Insulator to a Metal
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• Pseudogaps and their Interplay with Magnetic Excitations in the doped 2D Hubbard Model
• Validity of the rigid band picture for the t-J model
• Spectral properties of the planar t-J model
• Robustness of a local Fermi Liquid against Ferromagnetism and Phase Separation
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Cited by in corpus (4)

• Spectral functions, Fermi surface and pseudogap in the t-J model
• Spectral functions and pseudogap in the t-J model
• Momentum dependent relaxation rate and pseudogap in doped magnetic insulators
• Pseudogap and the Fermi surface in the t-J model