Piezoresponse through a ferroelectric nanotube wall

Nonnenmann, Stephen S.; Gallo, Eric M.; Coster, Michael T.; Soja, Gregory R.; Johnson, Craig L.; Joseph, Rahul S.; Spanier, Jonathan E.
December 2009
Applied Physics Letters;12/7/2009, Vol. 95 Issue 23, p232903
Academic Journal
We report on the controlled local switching and imaging of local ferroelectric polarizations oriented perpendicular to the long axis of a lead zirconate titanate (PZT) nanotube. Piezoresponse force microscopy and ferroelectric piezoelectric hysteresis data indicate stable polarizations oriented along the radial, finite-thickness direction can be formed in a nanoshell geometry. The results of infrared spectroscopy and of the character of as-found polarizations are consistent with recent findings linking surface chemical environment to ferroelectric stability and to orientation of ferroelectric polarizations.


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