| We present numerical results for spectral functions and corresponding self-energies within the t-t'-J model as relevant for hole-doped and electron-doped cuprates, obtained by the finite-temperature Lanczos method (FTLM) applied to small model systems. The self energy is generally resolved into two parts: a component leading to the anomalous relaxation and a pseudogap-generating part. In electron-doped case the Fermi surface develops from a pocket-like into a large one with doping, while the pseudogap vanishes with increasing doping and temperature. The appearance of high-energy kink in electron dispersion can be linked to strong correlations. |
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