Hierarchical domain structures and in situ domain migration in the antiferroelectric ceramic PLSnZT
Speck, J. S. ; De Graef, M. ; Wilkinson, A. P. ; Cheetham, A. K. ; Clarke, D. R.
[S.l.] : American Institute of Physics (AIP)
Published 1993
[S.l.] : American Institute of Physics (AIP)
Published 1993
| ISSN: |
1089-7550
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|---|---|
| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
The crystallography and microstructure of an antiferroelectric ceramic of approximate composition Pb0.97La0.02(Zr0.65Sn0.25Ti0.10)O3 have been examined. Transmission electron microscopy (TEM), x-ray, and neutron powder studies were carried out. The cell is metrically tetragonal with a c/a ratio of 0.993 when indexed to the parent cubic perovskite cell. The structure exhibits both a commensurate supercell, believed to be associated with oxygen octahedra distortions, and an incommensurate modulation. The different crystallographic variants of the tetragonal antiferroelectric phase gave rise to a hierarchy of domain structures. Charging of TEM specimens having an incomplete conductive coating caused domain migration.
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| Type of Medium: |
Electronic Resource
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| URL: |