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

Feng Yuan·Shiping Feng
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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 ($π$,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.

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Feng Yuan, Shiping Feng. 2000-06-06. Normal-state pseudogap and electron flat dispersion in copper oxide materials. https://doi.org/10.1016/s0375-9601(00)00384-4

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