An in situ diffraction study of domain wall motion contributions to the frequency dispersion of the piezoelectric coefficient in lead zirconate titanate

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Date
2013-01-28
Journal Title
Journal ISSN
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Publisher
American Institute of Physics
Abstract
The contribution of non-180 degrees domain wall displacement to the frequency dependence of the longitudinal piezoelectric coefficient has been determined experimentally in lead zirconate titanate using time-resolved, in situ neutron diffraction. Under subcoercive electric fields of low frequencies, approximately 3% to 4% of the volume fraction of non-180 degrees domains parallel to the field experienced polarization reorientation. This subtle non-180 degrees domain wall motion directly contributes to 64% to 75% of the magnitude of the piezoelectric coefficient. Moreover, part of the 33 pm/V decrease in piezoelectric coefficient across 2 orders of magnitude in frequency is quantitatively attributed to non-180 degrees domain wall motion effects. © 2013, American Institute of Physics.
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Keywords
PZT, Piezoelectricity, Time resolution, Neutron diffraction, Electric fields, Polarization
Citation
Seshadri, S. B., Prewitt, A. D., Studer, A. J., Damjanovic, D., & Jones, J. L. (2013). An in situ diffraction study of domain wall motion contributions to the frequency dispersion of the piezoelectric coefficient in lead zirconate titanate. Applied Physics Letters, 102(4), 042911. doi:10.1063/1.4789903
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