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Pseudogap above Tc in a model with d_{x^2-y^2} pairing

Jan R. Engelbrecht·Alexander Nazarenko·Mohit Randeria·Elbio Dagotto
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Abstract

We study the anomalous normal state properties of a simple two-dimensional model whose ground state is a d-wave superconductor. Using a self-consistent, conserving formulation, we show that pairing correlations above T_c lead to the appearance of a highly anisotropic pseudogap in the electronic spectral function and the destruction of the Fermi surface. We discuss the similarities and differences between our results and ARPES experiments on underdoped cuprates.

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Jan R. Engelbrecht, Alexander Nazarenko, Mohit Randeria, Elbio Dagotto. 1997-05-16. Pseudogap above Tc in a model with d_{x^2-y^2} pairing. https://doi.org/10.1103/physrevb.57.13406

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