Complex impedance and ionic conduction of single-crystalline BaTiO3

Keiji Shiga; Hirokazu Katsui; Takashi Goto

doi:10.1080/00150193.2016.1239479

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 language	English
Pages (from-to)	64-71
Number of pages	8
Journal	Ferroelectrics
Volume	504
Issue number	1
DOIs	https://doi.org/10.1080/00150193.2016.1239479
Publication status	Published - 2016 Nov 13

Keywords

Bariun titanate
ferroelectric
impedance
ionic conduction
single crystal

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1080/00150193.2016.1239479

Cite this

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title = "Complex impedance and ionic conduction of single-crystalline BaTiO3 ",

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.",

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T1 - Complex impedance and ionic conduction of single-crystalline BaTiO3

AU - Shiga, Keiji

AU - Katsui, Hirokazu

AU - Goto, Takashi

PY - 2016/11/13

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N2 - 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.

AB - 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.

KW - Bariun titanate

KW - ferroelectric

KW - impedance

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KW - single crystal

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