Observation of short-lived local polar states induced by applied tip biases in BaTiO3-based relaxor ferroelectric ceramics | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

7119608

Reference Type

Journal Article

Title

Observation of short-lived local polar states induced by applied tip biases in BaTiO3-based relaxor ferroelectric ceramics

Author(s)

Li, Q; Liu, Yun; Cheng, Z; Bian, J; Chen, Hua; Withers, RayL; ,

Year

2013

Is Peer Reviewed?

Yes

Journal

Applied Physics Letters
ISSN: 0003-6951
EISSN: 1077-3118

Publisher

AMER INST PHYSICS

Location

MELVILLE

DOI

10.1063/1.4813541

Web of Science Id

WOS:000321761000060

Abstract

Using piezoresponse force microscopy imaging and spectroscopy methods, surface polar states induced by applied tip biases in the ergodic/paraelectric phase of a BaTiO3-based relaxor ferroelectric ceramic have been observed. The induced polar state appears to be short-lived (typical lifetime only a few seconds) and dependent on the voltages applied and their duration. The observed piezoresponse hysteresis and relaxation behavior is primarily interpreted with respect to the picture of the polar nano-region dynamics, as proposed for lead-based relaxors. Spatially resolved piezoresponse relaxation mapping reveals the presence of sub-micron correlated features, presumably due to A-site chemical inhomogeneity as supported by site-correlated elemental mapping microanalysis. (C) 2013 AIP Publishing LLC.