Spectral properties of the planar t-J model

Abstract

The single-particle spectral functions $A(\mathbf{k},\omega )$ and self-energies $\Sigma (\mathbf{k},\omega )$ are calculated within the $t-J$ model using the finite-temperature Lanczos method for small systems. A remarkable asymmetry between the electron and hole part is found. The hole (photoemission) spectra are overdamped, with $\mathrm{Im}\Sigma \propto \omega$ in a wide energy range, consistent with the marginal Fermi liquid scenario, and in good agreement with experiments on cuprates. In contrast, the quasiparticles in the electron part of the spectrum show weak damping.

4 pages, RevTeX, 4 Postscript figures

Cited by in corpus (15)

• Spectral functions, Fermi surface and pseudogap in the t-J model
• c-axis conductivity in the normal state of cuprate superconductors
• Finite temperature spectral-functions of strongly correlated one-dimensional electron systems
• Spectral properties near the Mott transition in the two-dimensional t-J model
• Spectral functions and pseudogap in the t-J model
• The pseudogap in underdoped high Tc superconductors in the framework of the Boson Fermion model
• From local to nonlocal Fermi liquid in doped antiferromagnets
• Finite temperature spectral function of a hole in a quantum antiferromagnet and role of phonons
• Electron momentum distribution in underdoped cuprates
• Muon decay in orbit spectra for muon-electron conversion experiments
• Momentum dependent relaxation rate and pseudogap in doped magnetic insulators
• On the universal optical conductivity and single-particle relaxation in cuprates
• Pseudo gap in the density of states in cuprates
• Electronic spectrum and superconductivity in the extended t-J-V model
• Pseudogap and the Fermi surface in the t-J model