Complex impedance and ionic conduction of single-crystalline BaTiO3

Keiji Shiga, Hirokazu Katsui, Takashi Goto

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Dielectric properties of single-crystalline BaTiO3 in the direction to <001> were investigated by impedance spectroscopy. The complex plane plots showed high- and low-frequency semicircles and an inclined spike at 548–648 K. The spectroscopic plots of M″ comprised a single relaxation peak at 102–104 Hz, whereas those of Z″ exhibited a peak at high frequencies (102–104 Hz), a low-frequency peak, and dispersion. The high-frequency relaxation was attributed to the ferroelectric bulk. The low-frequency peak and dispersion were associated with the charge transfer and the Warburg impedance, respectively. The low-frequency impedance response implied the ionic conduction of BaTiO3.

Original languageEnglish
Pages (from-to)64-71
Number of pages8
JournalFerroelectrics
Volume504
Issue number1
DOIs
Publication statusPublished - 2016 Nov 13

Keywords

  • Bariun titanate
  • ferroelectric
  • impedance
  • ionic conduction
  • single crystal

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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