Time dependent evolution of polarization in PZT

Q. D. Liu; J. E. Huber

doi:10.1117/12.657405

6 April 2006 Time dependent evolution of polarization in PZT

Q. D. Liu, J. E. Huber

Proceedings Volume 6170, Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics; 61700B (2006) https://doi.org/10.1117/12.657405
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006, San Diego, California, United States

Abstract

The dielectric and piezoelectric responses to a constant electric field have been measured on initially unpoled PZT-5H and PLZT 8/65/35. In particular, we are interested in the time dependent remanent strain and polarization due to unipolar electric field because they are associated with the domain switching behaviour. An experimental method has been developed to obtain the remanent strains and polarization by accounting for dielectric and piezoelectric effects. A linear dependence of dielectric and piezoelectric modulus on remanent polarization was found in PZT-5H, but not in PLZT 8/65/35. In PLZT 8/65/35, a transition was observed at a value of remanent polarization of 0.07 Cm^-2 gradually evolving polarization to rapid switching. A change in the dominant mechanism of switching was also observed.

Citation Download Citation

Q. D. Liu and J. E. Huber "Time dependent evolution of polarization in PZT", Proc. SPIE 6170, Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics, 61700B (6 April 2006); https://doi.org/10.1117/12.657405

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