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Local probing of relaxation time distributions in ferroelectric polymer nanomesas: Time-resolved piezoresponse force spectroscopy and spectroscopic imaging
Author(s)
Date Issued
2008-06-11
Date Available
2013-12-19T09:45:24Z
Abstract
Time-resolved piezoresponse force spectroscopy (TR-PFS) and spectroscopic imaging are developed to probe the spatial variability of relaxation behavior in nanoscale ferroelectric materials and structures. TR-PFS was applied to study polarization dynamics in polyvinylidine fluoride and trifluoroethylene nanomesas. We demonstrate that polarization relaxation in ferroelectric polymers is slow even on the similar to 10 nm length scale of piezoresponse force microscopy (PFM) signal generation. Furthermore, the relaxation times are found to be nonuniform within the nanomesa, indicative of a complex internal structure. The applicability of TR-PFM for studies of polarization dynamics in ferroelectric polymers and relaxors is discussed. (C) 2008 American Institute of Physics.
Type of Material
Journal Article
Publisher
American Institute of Physics
Journal
Applied Physics Letters
Volume
92
Issue
23
Start Page
232903
Copyright (Published Version)
2008 American Institute of Physics
Keywords
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
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