Abstract

We consider a dielectric host medium with spherical high Tc superconducting particles embedded in it. The nonlinear electromagnetic field response of the composite superconductor material is calculated using a time-dependent Landau–Ginzburg model. Specifically, we predict a strong frequency dependence of the nonlinear susceptibility, field intensity dependence of the transition temperature, and third harmonic generation. The mechanism for the nonlinearity is the breaking of quasi-particle bonds by the electromagnetic field.

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