Irradiation behavior and recovery effect of ferroelectric properties of PZT thin films |
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| Institution: | 1.Laboratory for Space Environment and Physical Sciences, Harbin Institute of Technology, Harbin 150001, China;2.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;3.National Defense Science and Technology Key Laboratory for Space Materials Behavior and Evaluation, Harbin 150001, China;4.State Kay Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Lead zirconate titanate piezoelectric ceramics have important applications in space and aerospace technology, but the effect and physical mechanism of charged particle radiation on their performance yet to be clarified. In this study,we characterized PbZr_(0.52)Ti_(0.48)O_3(PZT) thin films, and changes in the ferroelectric properties of the films before and after electron and proton irradiation were investigated. The natural and heat treatment recoverability of the ferroelectric properties were studied, and the damages and mechanisms of different types of radiation in PZT films were also investigated.The results show that, in addition to ionization damages, electron irradiation causes certain structural damage on the PZT film, and the large structural damage caused by proton irradiation reduces drastically the ferroelectricity of the PZT film. |
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| Keywords: | proton irradiation electron irradiation ferroelectricity |
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