Large coercivity and polarization of sol-gel derived BaTiO 3 nanowires

BaTiO 3 nanowires were grown in an amorphous aluminum oxide membrane from a sol-gel via electrophoresis. These had a ferroelectric coercive field of 5 kV/mm after undergoing a thermal treatment. This value is 12-16 times larger than the bulk value. Such enhancements are in agreement with local PFM m...

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Bibliographic Details
Published in:Journal of applied physics 2011-09, Vol.110 (6), p.064112-064112-5
Main Authors: Boucher, R., Renz, P., Li, C., Fuhrlich, T., Bauch, J., Yoon, K. H., Lupascu, D. C.
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Summary:BaTiO 3 nanowires were grown in an amorphous aluminum oxide membrane from a sol-gel via electrophoresis. These had a ferroelectric coercive field of 5 kV/mm after undergoing a thermal treatment. This value is 12-16 times larger than the bulk value. Such enhancements are in agreement with local PFM measurements by others. An enhanced polarization of ≈80 μ C/cm 2 was also measured, where the bulk is around 26 μ C/cm 2 . In addition, low leakage currents were also observed.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.3641986