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

S. V. Kalinin; B. J. Rodriguez; S. Jesse; A. N. Morozovska; A. A. Bokov; Z. G. Ye

doi:10.1063/1.3242011

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

S. V. Kalinin, B. J. Rodriguez, S. Jesse, A. N. Morozovska, A. A. Bokov, Z. G. Ye

Center for Nanophase Matls Sciences

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

Spatial homogeneity of polarization relaxation behavior on the surface of 0.9Pb (Mg1/3 Nb2/3) O³ -0.1 PbTiO3 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.

Original language	English
Article number	142902
Journal	Applied Physics Letters
Volume	95
Issue number	14
DOIs	https://doi.org/10.1063/1.3242011
State	Published - 2009

Funding

The research is supported by the Center for Nanoscale Materials Sciences (S.V.K., B.J.R., and S.J.) 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 (A.A.B. and Z.G.Y.) by the Office of Naval Research (Grant No. N00014-06-1-0166). B.J.R. also acknowledges the support of UCD Research.

Funders	Funder number
Center for Nanoscale Materials Sciences
UCD Research
Office of Naval Research	N00014-06-1-0166
U.S. Department of Energy	CNMS2007-085
Basic Energy Sciences
Oak Ridge National Laboratory

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title = "Spatial distribution of relaxation behavior on the surface of a ferroelectric relaxor in the ergodic phase",

abstract = "Spatial homogeneity of polarization relaxation behavior on the surface of 0.9Pb (Mg1/3 Nb2/3) O3 -0.1 PbTiO3 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.",

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AU - Bokov, A. A.

AU - Ye, Z. G.

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AB - Spatial homogeneity of polarization relaxation behavior on the surface of 0.9Pb (Mg1/3 Nb2/3) O3 -0.1 PbTiO3 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.

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

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