TITLE

Sol-gel derived ferroelectric nanoparticles investigated by piezoresponse force microscopy

AUTHOR(S)
Johann, F.; Jungk, T.; Lisinski, S.; Hoffmann, Á.; Ratke, L.; Soergel, E.
PUB. DATE
November 2009
SOURCE
Applied Physics Letters;11/16/2009, Vol. 95 Issue 20, p202901
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Piezoresponse force microscopy (PFM) was used to investigate the ferroelectric properties of sol-gel derived LiNbO3 nanoparticles. To determine the degree of ferroelectricity we took large-area images and performed statistical image-analysis. The ferroelectric behavior of single nanoparticles was verified by poling experiments using the PFM tip. Finally we carried out simultaneous measurements of the in-plane and the out-of-plane piezoresponse of the nanoparticles, followed by measurements of the same area after rotation of the sample by 90° and 180°. Such measurements basically allow to determine the direction of polarization of every single particle.
ACCESSION #
45366507

 

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