Field induced kinetic ferroelectric phase transition in lead magnoniobate

The time dependence of the complex dielectric permittivity of lead magnoniobate (PMN) single crystal in an applied external DC field, was studied. The field was applied in a "zero-field-cooling" regime. All measurements were carried out for the low-temperature PMN non-ergodic glassy phase. The transition to the polar state at a time τ from the moment of field application was observed. The dependence of τ on both temperature and applied field was obtained.