期刊
APPLIED PHYSICS LETTERS
卷 107, 期 20, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4936165
关键词
-
资金
- Ministry of Sciences and Technology of China through National Basic Research Program of China (973 Program) [2015CB654604]
- National Natural Science Foundation of China for Creative Research Groups [51221291]
- National Natural Science Foundation of China [51272123, 51332002]
The nonlinear dielectric response in (Na0.52K0.4425Li0.0375)(Nb0.92-xTaxSb0.08)O-3 ceramics with different amounts of Ta was measured using subcoercive electric fields and quantified by the Rayleigh model. The irreversible extrinsic contribution, mainly caused by the irreversible domain wall translation, was strongly dependent on the domain configuration. The irreversible extrinsic contributions remained approximately the same within the single-phase regions, either orthorhombic or tetragonal, due to the similar domain morphology. However, in the polymorphic phase transition region, the domain wall density was increased by minimized domain size, as observed by transmission electron microscopy. This resulted in constrained domain wall motion due to selfclamping and reduced the irreversible extrinsic contribution. (c) 2015 AIP Publishing LLC.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据