Title: Generic Phase Diagram of Cuprate Superconductors
Abstract: In this chapter, the generic phase diagram of hole-doped cuprate high-Tc superconductors is discussed. The parent phases of cuprate high-Tc superconductors are antiferromagnetic Mott insulators. Doping leads to a transition to a superconductor. Superconductivity typically occurs for hole concentrations between 0.05 and 0.3 holes per copper atom, with a maximum of Tc around 0.18 holes per copper atom. Above a doping level of ≈0.3 holes per copper atom, the cuprates are nonsuperconducting metals. Furthermore, it is shown that the symmetry of the superconducting order parameter is d-wave and not s-wave as in simple metallic superconductors. In the cuprates, there exist gap-like features (pseudogap) at temperatures well above the critical temperature. Possible reasons for the existence of the pseudogap are discussed.
Publication Year: 2015
Publication Date: 2015-05-15
Language: en
Type: other
Indexed In: ['crossref']
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