In situ transmission electron microscopy study of the nanodomain growth in a Sc-doped lead magnesium niobate ceramic
- 10 July 2006
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 89 (2), 022904
- https://doi.org/10.1063/1.2219416
Abstract
Sc doping enhances the -site 1:1 cation ordering in the ceramic. At low doping levels, the electrical polar domains remain at the nanometer scale and the relaxor ferroelectric behavior persists. The electric field-induced relaxor to normal ferroelectric phase transition process was directly observed with an in situ transmission electron microscopy technique in a Sc-doped polycrystalline sample. It was found that the phase transition started at the grain boundary and took two steps to complete: the gradual coalescence of the polar nanodomains and the abrupt formation of the large wedge-shaped ferroelectric domains.
Keywords
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