Relaxor behavior in CaCu3Ti4O12ceramics

Shanming Ke, Haitao Huang, Huiqing Fan

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130 Citations (Scopus)

Abstract

The dielectric properties of Ca Cu3 Ti4 O12 (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.
Original languageEnglish
Article number182904
JournalApplied Physics Letters
Volume89
Issue number18
DOIs
Publication statusPublished - 13 Nov 2006

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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