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Barkhausen Noise Probe of the Ferroelectric Transition in the Relaxor PbMg1/3Nb2/3O3-12% PbTiO3 by Zhang, Xinyang; Mellinger, Corbyn; Colla, Eugene V.; Weissman, M. B.; Viehland, D. D. is a scholarly article available to read on EtoBox.

What is Barkhausen Noise Probe of the Ferroelectric Transition in the Relaxor PbMg1/3Nb2/3O3-12% PbTiO3 about?

Barkhausen current noise is used to probe the slow field-driven conversion of the glassy relaxor ferroelectric state to an ordered ferroelectric (FE) state. The frequent presence of distinct micron-scale Barkhausen events well before the polarization current starts to speed up shows that the process is not a conventional nucleation-limited one. The prevalence of reverse switching events near the onset of the rapid part of the transition strongly indicates that electric dipole interactions play a key role. The combination of Barkhausen noise changes and changes in the complex dielectric response indicate that the process consists of an initial mixed-alignment domain formation stage followed by growth of the domains aligned with the applied field.

Author

Zhang, Xinyang; Mellinger, Corbyn; Colla, Eugene V.; Weissman, M. B.; Viehland, D. D.

Published

2017

Language

EN