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High-voltage tunability measurements of the BaZrxTi1-xO3 ferroelectric ceramics

F. M. TUFESCU1,* , L. CURECHERIU1, A. IANCULESCU2, C. E. CIOMAGA1, L. MITOSERIU1

Affiliation

  1. Dept. of Solid State & Theor. Phys., Al. I. Cuza University, Bv. Carol I, 11, Iasi 700506, Romania
  2. Polytechnics University, 1-7 Gh. Polizu, P.O. Box 12-134, 011061 Bucharest, Romania

Abstract

One of the most important nonlinear characteristic of ferroelectrics is the tunabilty, i.e. the variation of permittivity with the applied field ε(E). The tunability properties of ceramic are rarely reported since very high voltages are needed for saturation. However, this type of characterization for bulk material is necessary to give reference value for the films characteristics, normally used in applications. A circuit to measure the tunability with a high accuracy was designed and realized. In the present work, the experimental method is described. In addition, tunability data of BaZrxTi1-xO3 ceramics are shown and discussed..

Keywords

Ferroelectric, Tunability, BaTiO3-based solid solution.

Submitted at: April 1, 2008
Accepted at: July 1, 2008

Citation

F. M. TUFESCU, L. CURECHERIU, A. IANCULESCU, C. E. CIOMAGA, L. MITOSERIU, High-voltage tunability measurements of the BaZrxTi1-xO3 ferroelectric ceramics, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 7, pp. 1894-1897 (2008)