Cuprate superconductors
Cuprate superconductors
The cuprates are uniquely interesting superconducting compounds due to their record transition temperature, peculiar properties, and potential for applications. They are doped materials, and the phase diagram is rather complex. The cuprates display peculiar symmetry of the order parameter, and unusual behavior of the critical field and the isotopic dependence. The pair-breaking effect and the phonon system play an important role. The chapter contains a description of experimental and theoretical key aspects of these materials. The roles of magnetic impurities and phonons for the mechanism are discussed.
Keywords: doping, perovskite structure, phase diagram, isotopic dependence, phonons, minimum conductivity
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