Thermally stimulated depolarization current study on barium titanate single crystals

Wanghua Wu; Zhifu Liu; Yan Gu; Zhenxing Yue; Yongxiang Li

doi:10.1063/1.5025501

AIP Advances (Apr 2018)

Thermally stimulated depolarization current study on barium titanate single crystals

Wanghua Wu,
Zhifu Liu,
Yan Gu,
Zhenxing Yue,
Yongxiang Li

Affiliations

Wanghua Wu: CAS Key Lab of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Shanghai 200050, China
Zhifu Liu: CAS Key Lab of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Shanghai 200050, China
Yan Gu: CAS Key Lab of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Shanghai 200050, China
Zhenxing Yue: State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
Yongxiang Li: CAS Key Lab of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Shanghai 200050, China

DOI: https://doi.org/10.1063/1.5025501
Journal volume & issue: Vol. 8, no. 4
pp. 045005 – 045005-6

Abstract

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Thermally stimulated depolarization current (TSDC) measurements were applied to investigate BaTiO3 single crystals with , , and orientations, and annealed under different atmospheres, respectively. The TSDC peaks related to ferroelectric domain, ferroelectric–paraelectric phase transition, TiTi′−VÖ dipole relaxation and oxygen vacancy migration were observed from the TSDC spectra. The formation of oxygen vacancy clusters in BaTiO3 single crystals leads to a high dipole activation energy. The crystalline face of BaTiO3 is more stable under external field than others.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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