A thermal treatment below the crystallization temperature followed by rapid cooling down was adopted onto as-deposited BaTiO3 (BTO) amorphous films to freeze the microstructure activated at annealed temperature. A large increase of dielectric constant from 19 to 329 was observed at 0.1 Hz for the BTO film annealed at 600 degrees C for 60 min. Subsequently, three separated dielectric relaxations were exploited as a function of the frequency and temperature. Such dielectric responses were analyzed in terms of the activation energy. The evolution of oxygen vacancy with temperature can be invoked as being responsible for the observed dielectric relaxations. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4717758]
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Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
Sun, Weidong
Lu, Xiaoju
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Hubei Polytech Univ, Sch Chem & Chem Engn, Huangshi 435003, Peoples R ChinaTsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
Lu, Xiaoju
Jiang, Jianyong
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Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
Jiang, Jianyong
Zhang, Xin
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Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
Zhang, Xin
Hu, Penghao
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Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R ChinaTsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
Hu, Penghao
Li, Ming
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Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
Li, Ming
Lin, Yuanhua
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Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
Lin, Yuanhua
Nan, Ce-Wen
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Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
Nan, Ce-Wen
Shen, Yang
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Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
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E China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R ChinaE China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R China
Xu, Wenfei
Yang, Jing
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E China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R ChinaE China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R China
Yang, Jing
Bai, Wei
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E China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R ChinaE China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R China
Bai, Wei
Tang, Kai
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E China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R ChinaE China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R China
Tang, Kai
Zhang, Yuanyuan
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E China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R ChinaE China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R China
Zhang, Yuanyuan
Tang, Xiaodong
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E China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R China
Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, Shanghai 200050, Peoples R ChinaE China Normal Univ, Dept Elect Engn, Minist Educ, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R China