Non-Linear Dielectric Response in the Sr(1 - x)Ba(x)Nb2O6Relaxor Ferroelectric Thin Film

Autor: J. de Los S. Guerra, José Antonio Eiras, R. G. Mendes
Rok vydání: 2006
Předmět:
Zdroj: Ferroelectrics. 335:241-248
ISSN: 1563-5112
0015-0193
DOI: 10.1080/00150190600691536
Popis: In this work, the non-linear (NL) dielectric properties of the Sr 0.75 Ba 0.25 Nb 2 O 6 (SBN) ferroelectric thin film prepared by the chemical method were investigated. The NL dielectric properties were obtained by using the measurements of the dielectric permittivity of the material as a function of the DC bias and the AC driving fields in a wide frequency (100 Hz–10 MHz) and temperature (150 K–350 K) range. An anomalous behavior of the non-linear dielectric response was observed when submitted to high electric fields levels. The obtained results were analyzed concerning one of the models for the dielectric response of relaxors ferroelectrics materials currently discussed in the literature.
Databáze: OpenAIRE