Investigation of domain structures in PZNT93/7 crystals by chemical etching

✍ Scribed by Min Jin; Jiayue Xu; Aiying Wu; Xinhua Li; Hui Shen; Qingbo He

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 265 KB
• Volume: 43
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.200711080

✦ Synopsis

Abstract

The domain structures in 0.93Pb (Zn~1/3~Nb~2/3~)O~3~‐0.07PbTiO~3~ (PZNT93/7) crystals were investigated by chemical etching technique. Original antiparallel 180° domains of size 20–40 μm were observed on the surface of as‐grown PZNT93/7 crystal. It was found the domain states are sensitive to the stress field induced by mechanical processing or impurities. As the composition of PZNT93/7 crystal was located near the morphotropic phase boundary, various domain configurations were observed. On the <001>‐oriented wafer, the etched a ‐ and c ‐domains revealed homogenous and island‐like patterns. The c ‐domains consist of upper and lower height regions corresponding to the tail and head of the polarization, respectively. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)