Ferroelectric characteristics of strontium barium niobate crystal

被引：0
|
作者：
Wu, Rina [1 ]
Chen, Chunrong [1 ]
Wei, Zhaoyang [1 ]
Wan, Yuchun [1 ]
机构：
[1] College of Material and Engineering, Changchun University of Science and Technology, Changchun 130022, China
来源：
Kuei Suan Jen Hsueh Pao/ Journal of the Chinese Ceramic Society | 2007年 / 35卷 / 01期
关键词：
Dielectric properties - Hysteresis loops - Optical microscopy - Phase transitions;
D O I：
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中图分类号：
学科分类号：
摘要：
The optical axis of ferroelectric monocrystal SrxBa1-xNb2O6 was confirmed to be a z axis using a polarized light microscope. A z-cut slice of 5 mm × 3 mm × 0.45 mm was made. With a 50 Hz alternating current field, the perfect ferroelectric hysteresis loop was obtained through a Sawyer-Tower circuit. The dependence of the dielectric spectra on the temperature and phase transition property of SrxBa1-xNb2O6 was analyzed. It was found that the characteristic temperature Tm transferred from the ferroelectric into the paraelectric phase is 74°C and the transition can be characterized as a relaxor phase transition.
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页码：52 / 54
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