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Original Articles

Transmission electron microscopic observations of ferroelectric domains in potassium tantalate niobate crystals

, , , , &
Pages 137-144 | Received 31 Dec 1992, Accepted 07 Apr 1993, Published online: 10 Feb 2011
 

Abstract

By transmission electron microscopy and electron diffraction methods, thin single crystals of potassium tantalate niobate are studied in detail. The 90° and 180° ferroelectric domains in analogy to the known results in BaTiO3 1 have been revealed. Under electron radiation, the nucleation and growth of a-c 90° domains and motion of ferroelectric 180° domain boundaries are observed and some novelties associated with it have been found. In addition, the interactions between different types of domains and domains induced by dislocations are observed in this material.

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