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

• Published in: Crystal research and technology (1979) Vol. 43; no. 6; pp. 666 - 669
• Main Authors: Jin, Min, Xu, Jiayue, Wu, Aiying, Li, Xinhua, Shen, Hui, He, Qingbo
• Format: Journal Article
• Language: English
• Published: Berlin WILEY-VCH Verlag 01.06.2008; WILEY‐VCH Verlag
• Subjects: chemical etching technique; domain structure; morphotropic phase boundary; PZNT93/7 crystal
• ISSN: 0232-1300; 1521-4079
• DOI: 10.1002/crat.200711080

The domain structures in 0.93Pb (Zn1/3Nb2/3)O3‐0.07PbTiO3 (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 ‐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)