Field-induced transformation of ferroelectric domain states in KTN crystal  

作　　者：Quanxin Yang Xiaojin Li Hongliang Liu Yingying Ren Pengfei Wu 杨全鑫;李小金;刘洪亮;任莹莹;武鹏飞(Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology,Institute of Modern Optics,Nankai University,Tianjin 300350,China;State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China;Shandong Provincial Engineering and Technical Center of Light Manipulations&Shandong Provincial Key Laboratory of Optics and Photonic Device,School of Physics and Electronics,Shandong Normal University,Jinan 250358,China;Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology,Tianjin 300350,China)

机构地区：[1]Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology,Institute of Modern Optics,Nankai University,Tianjin 300350,China [2]State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China [3]Shandong Provincial Engineering and Technical Center of Light Manipulations&Shandong Provincial Key Laboratory of Optics and Photonic Device,School of Physics and Electronics,Shandong Normal University,Jinan 250358,China [4]Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology,Tianjin 300350,China

出　　处：《Chinese Optics Letters》2021年第11期77-81,共5页中国光学快报（英文版）

基　　金：This work was supported by the Natural Science Foundation of Tianjin(No.19JCZDJC32700);the Fundamental Research Funds for the Central Universities。

摘　　要：We report an interesting study of electric-field-induced transformation from a single domain ferroelectric state to the multiple domain ferroelectric state in a KTa_(1-x)Nb_(x)O_(3)(KTN) crystal. Experimental results obtained using the confocalμ-Raman spectroscopy confirm the dynamic change of lattice structures induced by an external electric field.Furthermore, the dependence of relative permittivity on the applied voltage also indicates the transformation of ferroelectric states involving the processes of splintering, inversion, and re-formation of ferroelectric domains.

关 键 词：KTN ferroelectric state domain state transformation field-induced phenomenon 

分 类 号：O469[理学—凝聚态物理]