Dielectric properties of amorphous BaTiO3 films deposited by RF magnetron sputtering

Dielectric properties of amorphous BaTiO3 films deposited by RF magnetron sputtering

In the present paper, dielectric properties of a-BaTiO3 films have been investigated as a function of frequency (10−1 to 105 Hz) and temperature (25-350 °C) using the dielectric spectroscopy technique. Relaxation and ac-conductivity processes were analyzed in order to study charge transport in the b...

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Veröffentlicht in:Journal of the European Ceramic Society 2007, Vol.27
Hauptverfasser: El Kamel, Fadhel, Gonon, Patrice, Jomni, Fathi, Yangui, Béchir
Format: Artikel
Sprache:eng
Schlagworte:
Electric power
Engineering Sciences
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Zusammenfassung:In the present paper, dielectric properties of a-BaTiO3 films have been investigated as a function of frequency (10−1 to 105 Hz) and temperature (25-350 °C) using the dielectric spectroscopy technique. Relaxation and ac-conductivity processes were analyzed in order to study charge transport in the bulk and at the electrode-film interfaces. It seems that the oxygen vacancies play an essential role in both processes.
ISSN:0955-2219
1873-619X
DOI:10.1016/j.jeurceramsoc.2007.02.038