Neutron diffraction study of the polarization reversal mechanism in [111](c)-oriented Pb(Zn1/3Nb2/3)O-3-xPbTiO(3).
No Thumbnail Available
Date
2007-05-24
Journal Title
Journal ISSN
Volume Title
Publisher
American Institute of Physics
Abstract
The polarization reversal mechanism in [111](c)-oriented Pb(Zn1/3Nb2/3)O-3-xPbTiO(3) has been investigated by in-situ neutron diffraction. Stepwise static-field measurements of the (222)(c) rocking curves confirm a two-stage polarization reversal mechanism via a sequence of non-180 degrees domain reorientations. The time-resolved response has also been measured upon application of a bipolar square wave with a 30 s period to observe directly the relaxation times of diffracted neutron intensity during the reversal process. Upon application of a large antipolar field, the diffraction intensity increases quickly, before relaxing over a longer time period with an exponential decay constant, tau, of approximately 5.7 s. These large time constants correlate with a frequency dependence of the macroscopic strain-field response. © 2007, American Institute of Physics
Description
Keywords
Neutron diffraction, Monocrystals, Ceramics, PZT, Polarization, Decay
Citation
Daniels, J. E., Finlayson, T. R., Davis, M., Damjanovic, D., Studer, A. J., Hoffman, M., & Jones, J. L. (2007). Neutron diffraction study of the polarization reversal mechanism in [111](c)-oriented Pb(Zn1/3Nb2/3)O-3-xPbTiO(3). Journal of Applied Physics, 101(10), 7. doi:10.1063/1.2733636