Piezoelectric nonlinearity due to motion of 180° domain walls in ferroelectric materials at subcoercive fields: A dynamic poling model

Susan Trolier-McKinstry, Nazanin Bassiri Gharb, Dragan Damjanovic

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92 Scopus citations

Abstract

A mechanism is described whereby 180° domain wall motion can contribute to the electrically induced strain in a ferroelectric material at subcoercive ac electric fields. The field-dependent, largely reversible motion of ferroelectric, 180° domain walls due to an applied ac electric field is considered. The Rayleigh law is modified to describe the piezoelectric response of the system. This results in both a linear dependence of the piezoelectric coefficient on the amplitude of the applied electric field and the creation of a second order harmonic of strain which adds to the electrostrictive response. The model was experimentally confirmed in Pb (Zr1-x Tix) O3 thin films.

Original languageEnglish (US)
Article number202901
JournalApplied Physics Letters
Volume88
Issue number20
DOIs
StatePublished - May 15 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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