Effect of etching on formation of 60° domain in KNbO3 single crystal

Abstract

Abstract Domain study is a very useful tool to explain ferroelectric materials for its PotassiumNiobate (KNbO3) crystal were doped with Aluminum (Al). This Al-doped KNbO3 ferroelectric crystal further chemically etched using the etchant methyl alcohol. Trino cular m icro scopy m ethod was u sed to verify the ob servation s. In this study 60° domains domain walls and domain boundaries observed. Brief mechanism offorming 60° domain structure and domain wall discussed.