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Unexpected dielectric response in lead zirconate titanate ceramics: The role of ferroelectric domain wall pinning effects

Autor
Garcia, J. E.; Gomis, V.; Perez, R.; Albareda, A.; Eiras, J. A.
Tipus d'activitat
Article en revista
Revista
Applied physics letters
Data de publicació
2007-07
Volum
91
Número
4
Pàgina inicial
1
Pàgina final
3
DOI
https://doi.org/10.1063/1.2759983 Obrir en finestra nova
URL
https://aip.scitation.org/doi/10.1063/1.2759983 Obrir en finestra nova
Resum
Temperature dependent dielectric response has been measured in Pb(Zr1-xTix)O-3 ceramics. Samples of different compositions (x=0.40, 0.47, and 0.60), pure and doped with Nb-or Fe, were studied at temperatures between 15 and 700 K and in the frequency range from 100 Hz to 1 MHz. Unexpected dielectric behavior has been found around room temperature. Anomalous temperature dependent permittivity is observed in pure and Fe-doped samples but not in Nb-doped samples. The anomaly appears related to the p...
Paraules clau
Ceramics, Crystal structure, Crystallographic defects, Dielectric properties, Ferroelectric materials, Materials synthesis and processing, Phase transitions, Sintering, Transition metal oxides, Transition metals
Grup de recerca
CEMAD - Caracterització Elèctrica de Materials i Dispositius

Participants