New insights into the phase diagram of the copper oxide superconductors   from electronic Raman scattering
  Mechanism of unconventional superconductivity is still unknown even if more than 25 years have been passed since the discovery of high-Tc cuprate superconductors by J.G. Bednorz and K. A. Muller. Here, we explore the cuprate phase diagram by electronic Raman spectroscopy and shed light on the superconducting state in hole doped cuprates. Namely, how superconductivity and the critical temperature Tc are impacted by the pseudogap. 
A. Sacuto, Y. Gallais, M. Cazayous, M.-A. Measson, G. D. Gu and D.   Colson
cond-mat.supr-con