Angle resolved photo-emission spectroscopy signature of the resonant excitonic state
IPhT, L'Orme des Merisiers, CEA-Saclay - 91191 Gif-sur-Yvette, France
Received: 5 April 2016
Accepted: 12 September 2016
We calculate the angle resolved photo-emission spectroscopy (ARPES) signature of the resonant excitonic state (RES) that was proposed as the pseudo-gap state of cuprate superconductors (Kloss T. et al., arXiv:1510.03038 (2015)). 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 wave vectors, where 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.
PACS: 74.72.Gh – Hole-doped / 74.72.Kf – Pseudogap regime / 79.60.-i – Photoemission and photoelectron spectra
© EPLA, 2016