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Characterization of Ferroelectric BaTiO3 (100) Surfaces by Variable Temperature Scanning Surface Potential Microscopy and Piezoresponse Imaging

Published online by Cambridge University Press:  10 February 2011

Sergei V. Kalinin
Affiliation:
Dept. Mat. Sci. Eng., University of Pennsylvania, 3231 Walnut st. Philadelphia PA 19104
Dawn A. Bonnell
Affiliation:
Dept. Mat. Sci. Eng., University of Pennsylvania, 3231 Walnut st. Philadelphia PA 19104
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Abstract

Variable temperature atomic force microscopy (AFM), scanning surface potential microscopy (SSPM) and piezoresponse imaging were applied to the characterization of a model BaTiO3(100) surface. The influence of the domain structure on surface topography, surface potential and piezoresponse image is discussed. The domain induced surface corrugations and piezoelectric response were found to disappear above the Curie temperature in full agreement with theoretical expectations. Relaxation of apparent surface potential after the transition to paraelectric state on heating and during the transition to ferroelectric state on cooling was observed. The kinetics of potential relaxation was orders of magnitude slower than that of the transition.

Type
Research Article
Copyright
Copyright © Materials Research Society 2000

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