Universal relationship between the energy scales of the pseudogap phase, the superconducting state, and the charge-density-wave order in copper oxide superconductors

@article{Loret2020UniversalRB,
  title={Universal relationship between the energy scales of the pseudogap phase, the superconducting state, and the charge-density-wave order in copper oxide superconductors},
  author={Bastien Loret and N Auvray and G. D. Gu and Anne Forget and Doroth{\'e}e Colson and Maximilien Cazayous and Yann Gallais and Indranil Paul and Marcello Civelli and Alain Sacuto},
  journal={Physical Review B},
  year={2020},
  volume={101}
}
We report the hole doping dependencies of the pseudogap phase energy scale, $2\Delta_{\rm PG}$, the anti-nodal (nodal) superconducting energy scales $2\Delta^{AN}_{\rm SC}$ ($2\Delta^{N}_{\rm SC}$) and the charge density wave energy scale, $2\Delta_{\rm CDW}$. They have been extracted from the electronic Raman responses of distinct copper oxide families. For all the cuprates studied, we reveal universal doping dependencies which suggest that $2\Delta_{\rm PG}$, $2\Delta^{AN}_{\rm SC}$ and $2… 

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