Nonlinear Dielectric Response of Relaxor PMN-PZT Ceramics under DC Electric Field

Autor: A. A. Glazunov, S. A. Gridnev, A. N. Tsotsorin
Rok vydání: 2004
Předmět:
Zdroj: Ferroelectrics. 307:151-159
ISSN: 1563-5112
0015-0193
DOI: 10.1080/00150190490492277
Popis: The dielectric behaviors of (1−x)Pb(Mg1/3Nb2/3)O3−xPb(Zr0.53Ti0.47)O3 (PMN-PZT) relaxor ferroelectric ceramics of several compositions (x = 0.05–0.30) have been studied under high bias electric field. The dielectric constant decay with dc electric field was observed in the range of diffuse phase transitions. The nonlinear dielectric response was considered in frames of thermodynamic approach. It was shown also that all dielectric features may be understood using a model involving heterogeneous polar micro- and nanoregions.
Databáze: OpenAIRE