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Piezoresponse force spectroscopy of ferroelectric-semiconductor materials

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Author(s)
Morozovska, A. N. 
Svechnikov, Sergei V. 
Eliseev, Eugene A. 
Rodriguez, Brian J. 
et al. 
Uri
http://hdl.handle.net/10197/5206
Date Issued
10 December 2007
Date Available
08T09:14:46Z January 2014
Abstract
Piezoresponse force spectroscopy (PFS) has emerged as a powerful technique for probing highly localized polarization switching in ferroelectric materials. The application of a dc bias to a scanning probe microscope tip in contact with a ferroelectric surface results in the nucleation and growth of a ferroelectric domain below the tip, detected though the change of local electromechanical response. Here, we analyze the signal formation mechanism in PFS by deriving the main parameters of domain nucleation in a semi-infinite ferroelectric semiconductor material. The effect of surface screening and finite Debye length on the switching behavior is established. We predict that critical domain sizes and activation barrier in piezoresponse force microscopy (PFM) is controlled by the screening mechanisms. The relationships between domain parameters and PFM signal is established using a linear Green's function theory. This analysis allows PFS to be extended to address phenomena such as domain nucleation in the vicinity of defects and local switching centers in ferroelectrics. (c) 2007 American Institute of Physics.
Type of Material
Journal Article
Publisher
American Institute of Physics
Journal
Journal of Applied Physics
Volume
102
Issue
11
Start Page
114108
Copyright (Published Version)
2007, American Institute of Physics
Keywords
  • Piezoresponse force s...

DOI
10.1063/1.2818370
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
Owning collection
Physics Research Collection
Scopus© citations
65
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Jan 28, 2023
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