Nanoindentation induced piezoelectricity in SrTiO3 single crystals

Nanoindentation-induced polar properties in (0 0 1)-oriented SrTiO3 single crystals were analysed using piezoresponse force microscopy and local Raman spectroscopy measurements. The area directly beneath the indenter showed a strong piezoelectric response, together with an enhanced response in the a...

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Bibliographic Details
Main Author: Bdikin, I. (author)
Other Authors: Singh, Budhendra (author), Kumar, J. Suresh (author), Graca, M. P. F. (author), Balbashov, A. M. (author), Gracio, J. (author), Kholkin, A. L. (author)
Format: article
Language:eng
Published: 1000
Subjects:
RAMAN-SPECTROSCOPY
THIN-FILMS
PHASE-TRANSITION
INDENTATION
FERROELECTRICITY
CERAMICS
STRESS
GROWTH
Online Access:http://hdl.handle.net/10773/21028
Country:Portugal
Oai:oai:ria.ua.pt:10773/21028
Description
Summary:Nanoindentation-induced polar properties in (0 0 1)-oriented SrTiO3 single crystals were analysed using piezoresponse force microscopy and local Raman spectroscopy measurements. The area directly beneath the indenter showed a strong piezoelectric response, together with an enhanced response in the area along the direction tangential to the residual indent. Stress-induced stable polarization states near the crack areas were also observed. Local poling performed on the strained areas suggests a possibility of polarization reversal and the stability of field-induced polar states. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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