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arXiv · 1009.1895

Sol-Gel Derived Ferroelectric Nanoparticles Investigated by Piezoresponse Force Microscopy

F. Johann·T. Jungk·S. Lisinski·Á. Hoffmann·L. Ratke·E. Soergel
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Abstract

Piezoresponse force microscopy (PFM) was used to investigate the ferroelectric properties of sol-gel derived LiNbO$_3$ 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$^{\circ}$ and 180$^{\circ}$. Such measurements basically allow to determine the direction of polarization of every single particle.

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F. Johann, T. Jungk, S. Lisinski, Á. Hoffmann, L. Ratke, E. Soergel. 2010-09-09. Sol-Gel Derived Ferroelectric Nanoparticles Investigated by Piezoresponse Force Microscopy. https://doi.org/10.1063/1.3264052

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