Direct x-ray synchrotron imaging of strains at 180° domain walls in congruent LiNbO3 and LiTaO3 crystals

被引：47

作者：

Kim, S ^{[1
]}

Gopalan, V

Steiner, B

机构：

[1] Penn State Univ, Mat Res Lab, University Pk, PA 16802 USA

[2] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

[3] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 13期

关键词：

D O I：

10.1063/1.1312854

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present direct evidence for wide regions of strain on length scales of many micrometers associated with 180 degrees domain walls in congruent LiNbO3 and LiTaO3 crystals. Strain contrast in symmetric high-resolution diffraction images of these crystals in Bragg geometry arises in part from curvature in the basal planes (0001) across a domain wall as well as from lateral variation in the lattice spacing of the basal planes extending over many micrometers in going across a wall. (C) 2000 American Institute of Physics. [S0003-6951(00)02739-X].

引用

页码：2051 / 2053

页数：3

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