Observation of ring shaped domain patterns using a scanning nonlinear dielectric microscopy

被引：3
|
作者：
Katoh, M [1 ]
Morita, T [1 ]
Cho, Y [1 ]
机构：
[1] Tohoku Univ, Elect Commun Res Inst, Aoba Ku, Sendai, Miyagi 9808577, Japan
来源：
INTEGRATED FERROELECTRICS | 2004年 / 68卷
关键词：
scanning nonlinear dielectric microscopy; ring shaped domain; real-time observation; anti-parallel polarization reversal;
D O I：
10.1080/10584580490896517
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Unexpected ring shaped domain patterns were occasionally observed when ferroelectric nano-domain dots are formed by a voltage pulse application to the ferroelectric thin film using an electro conductive tip. In this study, we observed a real-time polarization reversal to understand such a variety of nano-domain formation processes. As a result, the ring shaped domain patterns were found to be related to the anti-parallel polarization reversal. Furthermore, by comparing the results of the congruent lithium tantalate to that of stoichiometric lithium tantalate, the mechanism of anti-parallel polarization reversal was suggested to link to the lattice vacancy of a specimen.
引用
收藏
页码：207 / 219
页数：13
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