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arXiv · 2412.14951

Rise and Fall of the Pseudogap in the Emery model: Insights for Cuprates

M. O. Malcolms·Henri Menke·Yi-Ting Tseng·Eric Jacob·Karsten Held·Philipp Hansmann·Thomas Schäfer
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Abstract

The pseudogap in high-temperature superconducting cuprates is an exotic state of matter, displaying emerging Fermi arcs and a momentum-selective suppression of states upon cooling. We show how these phenomena are originating in the three-band Emery model by performing cutting-edge dynamical vertex approximation calculations for its normal state. For the hole-doped parent compound our results demonstrate the formation of a pseudogap due to short-ranged commensurate antiferromagnetic fluctuations. At larger doping values, progressively, incommensurate correlations and a metallic regime appear. Our results are in qualitative agreement with the normal state of cuprates, and, hence, represent a crucial step towards the uniform description of their phase diagrams within a single theoretical framework.

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M. O. Malcolms, Henri Menke, Yi-Ting Tseng, Eric Jacob, Karsten Held, Philipp Hansmann, Thomas Schäfer. 2024-12-19. Rise and Fall of the Pseudogap in the Emery model: Insights for Cuprates. https://arxiv.org/abs/2412.14951

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