期刊
JOURNAL OF APPLIED PHYSICS
卷 119, 期 4, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4940964
关键词
-
资金
- Deutsche Forschungsgemeinschaft (DFG) [SFB/TRR 142]
- German Federal Ministry of Education and Research (BMBF) of Q.com Project [16 KIS 0126]
Confocal Raman spectroscopy is applied to identify ferroelectric domain structure sensitive phonon modes in potassium titanyl phosphate. Therefore, polarization-dependent measurements in various scattering configurations have been performed to characterize the fundamental Raman spectra of the material. The obtained spectra are discussed qualitatively based on an internal mode assignment. In the main part of this work, we have characterized z-cut periodically poled potassium titanyl phosphate in terms of polarity- and structure-sensitive phonon modes. Here, we find vibrations whose intensities are linked to the ferroelectric domain walls. We interpret this in terms of changes in the polarizability originating from strain induced by domain boundaries and the inner field distribution. Hence, a direct and 3D visualization of ferroelectric domain structures becomes possible in potassium titanyl phosphate. (C) 2016 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