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The use of pulsed electric acoustic technique for measuring electric field profiles in ferroelectric ceramic
(Proceedings - International Symposium on Electrets, 2002-12-01) [Trabalho apresentado em evento]
The pulsed electric acoustic technique, PEA, have been usually applied to probe space charge profiles in polymers. In this work we show preliminary results obtained with lead zirconate-titanate and niobium, PZTN, ferroelectric ...
Stable and metastable ferroelectric polarization analyzed by the ramp voltage technique
(Proceedings - International Symposium on Electrets, 2002-12-01) [Trabalho apresentado em evento]
The study of the stable and the metastable ferroelectric polarization of poly(vinylidene fluoride), PVDF, was performed using two successive equal sign ramp voltages, mediated by a short-circuit period. Rates from 10 V/s ...