Nonlinearity and scaling behavior in donor-doped lead zirconate titanate piezoceramic

Volkmar Mueller, Q. M. Zhang

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

Two different effective thresholds for the onset of nonlinearity in the dielectric and piezoelectric coefficients of donor-doped lead zirconate titanate (soft PZT) piezoceramics at electric ac fields Ec1≈100V/cm and Ec2≈1V/cm are found. Both are characterized by a scaling behavior x=x0+A[E-Ec)/Ec]F above the respective threshold, where x is the dielectric or piezoelectric coefficient. The values of the effective exponent are apparently independent of the particular ceramic system which suggests a universal behavior in soft PZT. We suggest that the nonlinearity is dominated by the dynamics of domain walls in a randomly pinned medium.

Original languageEnglish (US)
Pages (from-to)2692-2694
Number of pages3
JournalApplied Physics Letters
Volume72
Issue number21
DOIs
StatePublished - 1998

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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