Thermal Effects on Stoichiometric LiTaO3 Single Crystal

被引：0

作者：

Yeom, T. H. ^{[1
]}

Lee, S. H. ^{[1
]}

机构：

[1] Dept Phys, Cheongju 360764, South Korea

来源：

JOURNAL OF THE KOREAN MAGNETICS SOCIETY | 2005年 / 15卷 / 03期

关键词：

EPR; paramagnetic impurity ion; ferroelectrics; stoichiometric LiTaO3; thermal treatment;

D O I：

10.4283/JKMS.2005.15.3.177

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ferroelectric LiTaO3 single crystals, grown by the Czochralski method, were thermally treated at temperature 1000 degrees C and 1100 degrees C. Electron paramagnetic resonance (EPR) study of stoichiometric LiTaO3 and thermally treated LiTaO3 crystals has been investigated by employing an X-band spectrometer. From the Fe3+ EPR spectra, it turned out that there is no change of site location and local site symmetry around Fe3+ impurity ion between stoichiometric and thermally treated LiTaO3 single crystals. We confirmed that the ionic state of Fe3+ ion changed after thermal treatment. The EPR parameters of Fe3+ ion in LiTaO3 single crystals are determined with effective spin Hamiltonian.

引用

页码：177 / 180

页数：4

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