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

Journal Article · Thu Jan 01 04:00:00 EST 2009 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3242011· OSTI ID:1030986

Kalinin, Sergei V ^[1]; Rodriguez, Brian J ^[1]; Jesse, Stephen ^[1]; Morozovska, A. N. ^[2]; Bokov, Alexei A. ^[3]; Ye, Z. -G. ^[3]

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1. ORNL
2. National Academy of Science of Ukraine, Kiev, Ukraine
3. Simon Fraser University, Canada

Spatial homogeneity of polarization relaxation behavior on the surface of 0.9Pb(Mg{sub 1/3}Nb{sub 2/3})O{sub 3}-0.1PbTiO{sub 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.

• Research Organization: Oak Ridge National Laboratory (ORNL); Center for Nanophase Materials Sciences
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1030986
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 14 Vol. 95; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DISTRIBUTION
MICROSCOPY
POLARIZATION
RELAXATION
SPATIAL DISTRIBUTION
SPECTRA