High Resolution Electromechanical Imaging of Ferroelectric Materials in a Liquid Environment by Piezoresponse Force Microscopy

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Title: High Resolution Electromechanical Imaging of Ferroelectric Materials in a Liquid Environment by Piezoresponse Force Microscopy
Authors: Rodriguez, Brian J.
Jesse, S.
Baddorf, A. P.
Kalinin, S. V.
Permanent link: http://hdl.handle.net/10197/5338
Date: Jun-2006
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
Copyright (published version): 2006 American Phyiscal Society
Keywords: Piezoresponse force microscopy;Electrostatic forces;Capillary interactions;Cantilever resonances;Polymer materials
DOI: 10.1103/PhysRevLett.96.237602
Language: en
Status of Item: Peer reviewed
Appears in Collections:Physics Research Collection

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