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Structurally frustrated polar nanoregions in BaTiO₃-based relaxor ferroelectric systems

Liu, Y.; Withers, R. L.; Nguyen, B.; Elliott, K.


This letter presents direct electron diffraction evidence that structurally frustrated one-dimensional polar nanoregions arising from anticorrelated displacements of Ti and nearest neighboring O ions are responsible for the relaxation behavior observed in dopedBaTiO₃relaxor ferroelectrics, rather than chemical short range ordering. The role of the dopant ions is not to directly induce polar nanoregions but rather to set up random local strain fields preventing homogeneous strain distortion,...[Show more]

CollectionsANU Research Publications
Date published: 2007-10-11
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.2790481


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