| Autor: |
De Los Santos Guerra, J., Mendes, R. G., Eiras, J. A. |
| Předmět: |
|
| Zdroj: |
Ferroelectrics; 2006, Vol. 335 Issue 1, p241-248, 8p, 3 Graphs |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
