NONLINEAR DYNAMICS IN AN ELECTRICAL CIRCUIT CONTAINING A FERROELECTRIC

Nonlinear effects in a series oscillator circuit containing a ferroele ctric capacitor are investigated as a function of the temperature and the amplitude of the applied field. A relation is established between the circuit parameters and the resonance shift in samples of a pure tr iglycine sulfate crystal and in samples containing chromium impurity i ons. The observed effects are explained on the basis of a feature in t he domain structure of the samples and the influence of point defects on it. (C) 1997 American Institute of Physics.