Observation of the Ferro-Electric Barkhausen Effect in Barium Titanate

Abstract
Conductivity pulses were observed immediately after a single crystal of barium titanate was placed in an electric field, but died out in a few seconds. Several experiments were designed to test the hypothesis that these pulses were caused by the Barkhausen effect. From the experiments, the volume of a Barkhausen region and the apparent velocity of a domain wall could be estimated.