Angle Resolved Photo-Emission Spectroscopy signature of the Resonant Excitonic State

Abstract : We calculate the Angle Resolved PhotoEmission Spectroscopy (ARPES) signature of the Resonant Excitonic State (RES) that was proposed as the Pseudo-Gap state of cuprate superconductors [ArXiv 1510.03038]. This new state can be described as a set of excitonic (particle-hole) patches with an internal checkerboard modulation. Here, we modelize the RES as a charge order with $\bf{2p_{F}}$ wave vectors, where $\bf{2p_{F}}$ is the ordering vector connecting two opposite sides of the Fermi surface. We calculate the spectral weight and the density of states in the RES and we find that our model correctly reproduces the opening of the PG in Bi-2201.
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X. Montiel, T. Kloss, C. Pépin. Angle Resolved Photo-Emission Spectroscopy signature of the Resonant Excitonic State. EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2016, 115, pp.57001. ⟨10.1209/0295-5075/115/57001⟩. ⟨cea-01490547⟩

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