Ferroelectric Q and antiferroelectric P phases' coexistence and local phase transitions in oxygen‐deficient NaNbO3 single crystal: micro‐Raman, dielectric and dilatometric studies
Ferroelectric Q and antiferroelectric P phases' coexistence and local phase transitions in oxygen‐deficient NaNbO3 single crystal: micro‐Raman, dielectric and dilatometric studies
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DOI：
10.1002/jrs.3140
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发表时间：
2012-08
影响因子：
2.5
通讯作者：
R. Shakhovoy;S. I. Raevskaya;L. A. Shakhovaya;D. V. Suzdalev;I. Raevski;Y. Yuzyuk;A. F. Semenchev;M. Marssi
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文献类型：
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作者：
R. Shakhovoy;S. I. Raevskaya;L. A. Shakhovaya;D. V. Suzdalev;I. Raevski;Y. Yuzyuk;A. F. Semenchev;M. Marssi
缺乏氧的灰色NaNbO3单晶的微拉曼研究表明，在室温下，反铁电P相和铁电Q相同时作为数十微米大小的独立区域存在。在P和Q区的相变已经阐明了电介质，膨胀和微拉曼研究。首次揭示了反铁电相P与铁电相Q和N之间的相变顺序。版权所有©2012 John Wiley & Sons， Ltd。
Micro-Raman studies of oxygen-deficient gray-colored NaNbO3 single crystals have shown that at room temperature both antiferroelectric P and ferroelectric Q phases are present simultaneously as separate regions tens of micrometers in size. Phase transitions in P and Q regions have been elucidated by dielectric, dilatometric and micro-Raman studies. For the first time, the sequence of phase transitions between antiferroelectric phase P and ferroelectric Q and N phases has been revealed. Copyright © 2012 John Wiley & Sons, Ltd.