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High Resolution Electromechanical Imaging of Ferroelectric Materials in a Liquid Environment by Piezoresponse Force Microscopy
Date Issued
2006-06
Date Available
2014-01-31T09:55:04Z
Abstract
High-resolution imaging of ferroelectric materials using piezoresponse force microscopy (PFM) is demonstrated in an aqueous environment. The elimination of both long-range electrostatic forces and capillary interactions results in a localization of the ac field to the tip-surface junction and allows the tip-surface contact area to be controlled. This approach results in spatial resolutions approaching the limit of the intrinsic domain-wall width. Imaging at frequencies corresponding to high-order cantilever resonances minimizes the viscous damping and added mass effects on cantilever dynamics and allows sensitivities comparable to ambient conditions. PFM in liquids will provide novel opportunities for high-resolution studies of ferroelectric materials, imaging of soft polymer materials, and imaging of biological systems in physiological environments on, ultimately, the molecular level.
Type of Material
Journal Article
Publisher
American Phyiscal Society
Journal
Physical Review Letters
Volume
96
Issue
23
Start Page
2376021
End Page
2376024
Copyright (Published Version)
2006 American Phyiscal Society
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
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