Spatial distribution of relaxation behavior on the surface of a ferroelectric relaxor in the ergodic phase

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Title: Spatial distribution of relaxation behavior on the surface of a ferroelectric relaxor in the ergodic phase
Authors: Kalinin, S. V.Rodriguez, Brian J.Jesse, al.
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Date: 5-Oct-2009
Online since: 2013-12-13T10:28:19Z
Abstract: Spatial homogeneity of polarization relaxation behavior on the surface of 0.9Pb(Mg1/3Nb2/3)O-3-0.1PbTiO(3) crystals in the ergodic relaxor phase is studied using three-dimensional time-resolved spectroscopic piezoresponse force microscopy. The number of statistically independent components in the spectroscopic image is determined using principal component analysis. In the studied measurement time interval, the spectra generally exhibit logarithmic behavior with spatially varying slope and offset, and the statistical distribution of these parameters are studied. The data illustrate the presence of mesoscopic heterogeneity in the dynamics of the relaxation behavior that can be interpreted as spatial variation in local Vogel-Fulcher temperatures.
Funding Details: Other funder
Funding Details: Center for Nanoscale Materials Sciences at the Oak Ridge National Laboratory, Division of Scientific User Facilities, Office of Basic Energy Sciences, U.S. Department of Energy and was a part of the CNMS User Program (Grant No. CNMS2007-085). This work is also supported by the Office of Naval Research (Grant No. N00014-06-1-0166). and the support of UCD Research.
Type of material: Journal Article
Publisher: AIP Publishing
Journal: Applied Physics Letters
Volume: 95
Issue: 14
Start page: 142902
Copyright (published version): 2009 American Institute of Physics
Keywords: Spectroscopic piezoresponse force microscopyMesoscopic heterogeneityVogel–Fulcher temperatures
DOI: 10.1063/1.3242011
Language: en
Status of Item: Peer reviewed
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