Characterization of Electrical Materials, Especially Ferroelectrics, by Impedance Spectroscopy

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• 作者：Anthony R West ; Derek C Sinclair and Naohiro Hirose
• 关键词：impedance data ; equivalent circuits ; ferroelectric materials ; impedance and modulus spectroscopy ; lithium tantalate ferroelectric ; barium titanate
• 刊名：Journal of Electroceramics
• 出版年：1997
• 出版时间：1997
• 年：1997
• 卷：1
• 期：1
• 页码：65-71
• 全文大小：147 KB

文摘

A review is given of some of the problems encountered in the analysis and interpretation of impedance data. The importance of choosing the correct equivalent circuit to represent the data is emphasized and it is shown how ferroelectric materials, with their characteristic temperature-dependent capacitance, are particularly suited to discriminating between plausible equivalent circuits. Results are discussed for two materials, LiTaO₃ single crystal and BaTiO₃ ceramics.