Abstract
Domain structures in ferroelectric glycine sulfate are studied by etching in various alcohols. Methyl alcohol etches the head of polarization more readily than the tail end, and gives, in a relatively short time, clear domain patterns. Moreover, this etchant etches the (001) surface very slowly and after a long time delineates the arranging manner of domains along the polarization axis. Domain boundaries have cylindrical surfaces parallel to b axis, but the sections perpendicular to the axis are quite indefinite in dimensition and direction. Domain terminated with a rounded tip in the antiparallell domain was observed. Crystal imperfection seems to have a considsrable effect on the domain structure of this crystal. Some preliminary studies of domain wall motion under the application of electric field are also reported.
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