Percolation-type phase transitions in lead zinconiobate crystals in an electric field
Kamzina L. S., Kratnik N. N., Korzhenevskii A. L.
With the help of the small-angle light scattering method, the appearance of a percolation-type phase transition in an electric field has been detected for the first time in the strongly disordered ferroelectric lead zinconiobate. In fields above a critical value, the behavior of anomalous light scattering was found to be in agreement with the conclusions of the phenomenological Andelman-Joanny theory.