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

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. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4789903]


Published in:
Applied Physics Letters, 102, 4, 042911
Year:
2013
Publisher:
Melville, American Institute of Physics
ISSN:
0003-6951
Laboratories:




 Record created 2013-02-03, last modified 2018-10-07

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