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Title: Relaxor behavior in CaCu₃Ti₄O ₁₂ceramics
Authors: Ke, Shanming
Huang, Haitao
Fan, Huiqing
Subjects: Calcium compounds
Copper compounds
Relaxor ferroelectrics
Ferroelectric ceramics
Dielectric hysteresis
Issue Date: 30-Oct-2006
Publisher: American Institute of Physics
Source: Applied physics letters, 30 Oct. 2006, v. 89, no. 18, 182904, p. 1-3.
Abstract: The dielectric properties of CaCu₃Ti₄O ₁₂ (CCTO) ceramics have been investigated in a temperature range of 143–573 K and a frequency range of 1 Hz–10 MHz. A dielectric anomaly has been observed between 350 and 600 K. The broad dielectric peaks in ε′(T) can be well fitted by a modified Curie-Weiss law and a Vogel-Fulcher relationship, which is indicative of a relaxor ferroelectric behavior. A slim I-V loop as well as the P-E hysteresis loop and broad maxima in ε″(f) also suggest the existence of a relaxor ferroelectric behavior in CCTO ceramics.
Rights: © 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in S. Ke, H. Huang & H. Fan, Appl. Phys. Lett. 89, 182904 (2006) and may be found at
Type: Journal/Magazine Article
DOI: 10.1063/1.2374682
ISSN: 0003-6951 (print)
1077-3118 (online)
Appears in Collections:MRC Journal/Magazine Articles
AP Journal/Magazine Articles

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