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.
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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