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7170400 
Journal Article 
De-aging of Fe-doped lead-zirconate-titanate ceramics by electric field cycling: 180 degrees- vs. non-180 degrees domain wall processes 
Glaum, J; Genenko, YA; Kungl, H; Schmitt, LAna; Granzow, T; , 
2012 
Yes 
Journal of Applied Physics
ISSN: 0021-8979
EISSN: 1089-7550 
AMER INST PHYSICS 
MELVILLE 
WOS:000308335400085 
Acceptor-doped ferroelectrics tend to show pronounced aging behavior. The microscopic effects of aging are commonly related to oxygen vacancies, however, there are still open questions with respect to their impact on domain wall movements. To elucidate the latter, the reverse process of de-aging by electric field cycling is investigated here on Pb(Zr0.54Ti0.46)O-3 doped with iron in different concentrations. Measurements of the hysteretic behavior of large-signal parameters, i.e., polarization and strain, as well as small-signal parameters, i.e., electrical permittivity and piezoelectric coefficient, are used to distinguish between reversible and irreversible movement of 180 degrees- and non-180 degrees domain walls. The results indicate that for low doping concentrations, the de-aging behavior of 180 degrees domain wall motion is governed by irreversible domain wall motion and a coarsening of the domain structure, while for non-180 degrees domain walls the change in reversible domain wall mobility is the dominant de-aging mechanism. For high doping concentrations, an additional clamping effect related to the smaller grain size occurs. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4739721]