Role of lower valent substituent-oxygen vacancy complexes in polarization pinning in potassium-modified lead zirconate titanate

Qi Tan; Jianxing Li; Dwight Viehland

doi:10.1063/1.124394

Role of lower valent substituent-oxygen vacancy complexes in polarization pinning in potassium-modified lead zirconate titanate

Qi Tan^*, Jianxing Li, Dwight Viehland

^*Corresponding author for this work

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

95 Scopus citations

Abstract

The dependence of polarization switching on thermal histories has been investigated for K¹⁺-modified lead zirconate titanate (PZT) ceramics by Sawyer-Tower polarization methods. It was found that double-loop-like polarization characteristics in the aged condition could be reversed to normal single loop polarization characteristics by quenching specimens from above the ferroelectric phase transition temperature. However, the P-E curves reversed back to double-loop-like characteristics after reaging specimens at elevated temperatures. Excess oxygen vacancies in La³⁺-modified PZT were not found to result in double-loop-like polarization hysteresis, whereas excess oxygen vacancies in K¹⁺-modified PZT did. These results provide evidence for role of K¹⁺-oxygen vacancy complexes in polarization pinning.

Original language	English
Pages (from-to)	418-420
Number of pages	3
Journal	Applied Physics Letters
Volume	75
Issue number	3
DOIs	https://doi.org/10.1063/1.124394
State	Published - 19 Jul 1999
Externally published	Yes

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title = "Role of lower valent substituent-oxygen vacancy complexes in polarization pinning in potassium-modified lead zirconate titanate",

abstract = "The dependence of polarization switching on thermal histories has been investigated for K1+-modified lead zirconate titanate (PZT) ceramics by Sawyer-Tower polarization methods. It was found that double-loop-like polarization characteristics in the aged condition could be reversed to normal single loop polarization characteristics by quenching specimens from above the ferroelectric phase transition temperature. However, the P-E curves reversed back to double-loop-like characteristics after reaging specimens at elevated temperatures. Excess oxygen vacancies in La3+-modified PZT were not found to result in double-loop-like polarization hysteresis, whereas excess oxygen vacancies in K1+-modified PZT did. These results provide evidence for role of K1+-oxygen vacancy complexes in polarization pinning.",

author = "Qi Tan and Jianxing Li and Dwight Viehland",

year = "1999",

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doi = "10.1063/1.124394",

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volume = "75",

pages = "418--420",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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T1 - Role of lower valent substituent-oxygen vacancy complexes in polarization pinning in potassium-modified lead zirconate titanate

AU - Tan, Qi

AU - Li, Jianxing

AU - Viehland, Dwight

PY - 1999/7/19

Y1 - 1999/7/19

N2 - The dependence of polarization switching on thermal histories has been investigated for K1+-modified lead zirconate titanate (PZT) ceramics by Sawyer-Tower polarization methods. It was found that double-loop-like polarization characteristics in the aged condition could be reversed to normal single loop polarization characteristics by quenching specimens from above the ferroelectric phase transition temperature. However, the P-E curves reversed back to double-loop-like characteristics after reaging specimens at elevated temperatures. Excess oxygen vacancies in La3+-modified PZT were not found to result in double-loop-like polarization hysteresis, whereas excess oxygen vacancies in K1+-modified PZT did. These results provide evidence for role of K1+-oxygen vacancy complexes in polarization pinning.

AB - The dependence of polarization switching on thermal histories has been investigated for K1+-modified lead zirconate titanate (PZT) ceramics by Sawyer-Tower polarization methods. It was found that double-loop-like polarization characteristics in the aged condition could be reversed to normal single loop polarization characteristics by quenching specimens from above the ferroelectric phase transition temperature. However, the P-E curves reversed back to double-loop-like characteristics after reaging specimens at elevated temperatures. Excess oxygen vacancies in La3+-modified PZT were not found to result in double-loop-like polarization hysteresis, whereas excess oxygen vacancies in K1+-modified PZT did. These results provide evidence for role of K1+-oxygen vacancy complexes in polarization pinning.

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DO - 10.1063/1.124394

M3 - 文章

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SN - 0003-6951

VL - 75

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EP - 420

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Role of lower valent substituent-oxygen vacancy complexes in polarization pinning in potassium-modified lead zirconate titanate

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