Polarization switching of pure and MgO-doped lithium niobate crystals

被引：20

作者：

Hu, ML ^{[1
]}

Hu, LJ

Chang, JY

机构：

[1] Natl Cent Univ, Inst Opt Sci, Chungli 320, Taiwan

[2] Chung Shan Inst Sci & Technol, Mat & Electroopt Res Div, Lungtan 325, Taiwan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2003年 / 42卷 / 12期

关键词：

MgO-doped LN crystal; polarization switching; hysteresis loop; coercive field; internal field; defects;

D O I：

10.1143/JJAP.42.7414

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report here the polarization switching properties of pure and MgO-doped LiNbO3 crystals measured directly by applying an external electric field at room temperature. From hysteresis measurements, the ferroelectric intrinsic coercive fields are found to be decreased when the MgO concentration is increased. Spontaneous polarization is insensitive to the nonstoichiometric composition. The stability time of domain switching is strongly dependent on the MgO doping level. The strength of the internal field related to the non-stoichiometric defect will be discussed.

引用

页码：7414 / 7417

页数：4

共 25 条

[21] An approach to the defect structure analysis of lithium niobate single crystals [J].