Phenomenological Calculation of the Domain-size-dependent Ferroelectric Domain-wall Velocity

被引：4
|
作者：
Song, Tae Kwon [1 ]
Yang, Sang Mo [2 ,3 ]
机构：
[1] Changwon Natl Univ, Sch Nano & Adv Mat Engn, Chang Won 641773, South Korea
[2] Seoul Natl Univ, Dept Phys & Astron, FPRD, Seoul 151747, South Korea
[3] Seoul Natl Univ, ReCOE, Seoul 151747, South Korea
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2009年 / 55卷 / 02期
关键词：
Ferroelectric switching; Domain-wall velocity; Landau-Khalatnikov equation; THICKNESS DEPENDENCE; THIN-FILMS; NUCLEATION; MICROSCOPY; KINETICS; BATIO3;
D O I：
10.3938/jkps.55.618
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The ferroelectric domain-wall velocity was calculated using a modified Landau-Khalatnikov equation by considering the electrostatic energy for the growth of cylindrical 180 degrees domains. The parameters for the calculation were measured from piezoresponse force microscope images of epitaxial Pb(Zr,Ti)O-3 thin films. The calculated domain-wall velocity was inversely proportional to the domain radius and agreed well with the measured velocity. The electrostatic energy was found to be the most important factor governing ferroelectric domain growth kinetics in the initial stage.
引用
收藏
页码：618 / 621
页数：4
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