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

页码：207 / 219

页数：13

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