Abstract
A structural hysteresis associated with domain orientation during poling and thermal depoling of lead titanate zirconate (PZT) ceramics has been observed. The poled materials appear to lose their piezoelectric properties at a temperature somewhat below the Curie temperature and yet the domain configurations remain unchanged. The above phenomenon is successfully explained by a model which predicts that upon thermal depolarization, poled ceramics undergo transformation from the poled state into the antiferroelectric state before returning back to their original unpoled state.
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Law, H.H., Rossiter, P.L., Simon, G.P. et al. A model for the structural hysteresis in poling and thermal depoling of PZT ceramics. J Mater Sci 30, 4901–4905 (1995). https://doi.org/10.1007/BF01154502
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DOI: https://doi.org/10.1007/BF01154502