Ac conductivity studies on the Li irradiated PZT and SBT ferroelectric thin films

Angadi, Basavaraj ; Victor, P. ; Jali, V. M. ; Lagare, M. T. ; Kumar, Ravi ; Krupanidhi, S. B. (2003) Ac conductivity studies on the Li irradiated PZT and SBT ferroelectric thin films Materials Science and Engineering B, 100 (1). pp. 93-101. ISSN 0921-5107

Full text not available from this repository.

Official URL:

Related URL:


Pb(Zr0.53Ti0.47)O3 (PZT) and SrBi2Ta2O9 (SBT) ferroelectric thin films were prepared on Pt coated Si substrates by pulsed laser ablation technique and their responses to the high energy Lithium ion irradiation were studied in terms of their ac conductivity, dielectric studies, polarization hysteresis and structural properties. The PZT and SBT thin films were fabricated in Metal-Insulator-Metal capacitor configuration and were irradiated with the 50 MeV Lithium ions with varying fluence from 1×1012 to 1×1014 ions cm-2. The ferroelectric properties were observed to be degraded by the irradiation. The ac conductivity of the films was explained by the charge carrier hopping model. Irradiated PZT thin films exhibited a significant variation on the frequency dependent exponent(s) while the irradiated SBT thin films had a negligible influence. The activation energy calculated from the Arrhenius plots was found to increase from 1.05 to 1.55 eV for PZT and from 0.85 to 0.91 eV for SBT thin film after irradiation. These energies were attributed to the oxygen vacancies and the deep trap carriers induced by the irradiation.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Ferroelectric Thin Films; Ac Conductivity; Irradiation
ID Code:19064
Deposited On:25 Nov 2010 14:31
Last Modified:06 Jun 2011 04:42

Repository Staff Only: item control page