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Complex Dielectric Spectroscopy Characterization of a Li0.982Ta1.004O3 Ferroelectric Single Crystal

Published online by Cambridge University Press:  10 February 2011

Ming Dong  and
Rosario A. Gerhardt
Ming Dong
Affiliation:
School of Materials Science and Engineering, The Georgia Institute of Technology, Atlanta, GA 30332–0245, USA
Rosario A. Gerhardt
Affiliation:
School of Materials Science and Engineering, The Georgia Institute of Technology, Atlanta, GA 30332–0245, USA
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Abstract

The dielectric properties of a c-oriented ferroelectric Li0.982Ta1.004O3 single crystal have been investigated. The frequency and the temperature dependence of the dielectric properties have been measured from 500 to 650°C at frequencies ranging from 5 to 106 Hz. Both blocking and non-blocking electrodes were used for separating the electrode effect from the crystal bulk dielectric response. A low-frequency dispersion was identified to be due to the contribution of Li+ ionic carriers. Based on the electrical measurement data and complex nonlinear least squares fitting, an equivalent circuit is proposed to represent the dielectric properties of the single crystal.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 500: Symposium EE – Electrically Based Microstructural Characterization II , 1997 , 195
Copyright
Copyright © Materials Research Society 1998

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References

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