Phase separation and the phase diagram of cuprate superconductors

  title={Phase separation and the phase diagram of cuprate superconductors},
  author={Evandro V.L. De Mello and D. H. N. Dias and Otton T. da Silveira Filho},
  journal={Journal of Physics: Condensed Matter},
We show that the main features of the cuprate superconductor phase diagram can be derived considering the disorder as a key property of these materials. Our basic point is that the high pseudogap line is an onset of phase separation which generates compounds made up of regions with distinct doping levels. We calculate how this continuous temperature dependent phase separation process occurs in high critical temperature superconductors (HTSC) using the Cahn–Hilliard approach, originally applied… Expand
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