Electron microscopy study of the ferroelectric domains and domain wall structure in PbZr0.52Ti0.48O3

The crystallography of the domains and domain walls in lead zirconate titanate are studied using electron diffraciton and transmission electron microscopy. Both 90 ° and 180 ° domains are observed and the 90° domains are shown to be deformation twins with displacement along 〈110〉 on {110}. The thickness of the 90 ° domain wall is determined to be ≲100 Å.