Electrostatic model of the LiТаO3 ferroelectric
- 作者: Yatsenko A.1
-
隶属关系:
- Vernadsky Crimean Federal University
- 期: 卷 62, 编号 1 (2017)
- 页面: 118-122
- 栏目: Physical Properties of Crystals
- URL: https://journals.rcsi.science/1063-7745/article/view/190553
- DOI: https://doi.org/10.1134/S1063774516040258
- ID: 190553
如何引用文章
详细
Possible combinations of the electronic polarizability tensor components for oxygen and tantalum ions have been established based on the analysis of the refraction coefficients of LiТаO3 crystal in the far-IR region. The local electric field on structurally nonequivalent ions in the LiТаO3 unit cell was calculated within the modified point-multipole model. A combination of the electronic polarizability tensor components for oxygen and tantalum ions and their effective charges is established, which provides a good correspondence of the calculation results with the experimental data on LiТаO3 crystals obtained by 7Li nuclear magnetic resonance and 181Та nuclear quadrupole resonance and with the known value of the crystal spontaneous polarization.
作者简介
A. Yatsenko
Vernadsky Crimean Federal University
编辑信件的主要联系方式.
Email: lab2@crimea.edu
俄罗斯联邦, pr. Vernadskogo 4, Simferopol