Normal-state pseudogap and electron flat dispersion in copper oxide materials

Abstract

The anomalous momentum and doping dependence of the electron spectral function and electron dispersion for copper oxide materials in the underdoped regime are studied within the t-J model. It is shown that the electron spectrum is changed with dopings, and the electron dispersion exhibits a flat band around ($\pi$,0) point in the Brillouin zone, which leads to the normal-state pseudogap formation. The theoretical results are consistent with the experiments and numerical simulations.

13 pages, Latex, Two figures are included, accepted for publication in Phys. Lett. A

References in corpus (4)

• Theory of Photoemission from the Copper Oxide Material
• Normal state pseudogap and (π,0) feature in the underdoped high-T_c cuprates. A microscopical theory
• Charge Dynamics from Copper Oxide Materials
• Anomalous c-axis charge dynamics in copper oxide materials

Cited by in corpus (2)

• Robustness of the van Hove scenario for high-Tc superconductors
• Asymmetry of the electron spectrum in hole-doped and electron-doped cuprates