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Electromechanical behavior of 90-degree domain motion in barium titanate single crystals

Burcsu, Eric and Ravichandran, G. and Bhattacharya, Kaushik (2001) Electromechanical behavior of 90-degree domain motion in barium titanate single crystals. In: Smart Structures and Materials 2001: Active Materials: Behavior and Mechanics. Proceedings of SPIE. No.4333. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, pp. 121-130. ISBN 0-8194-4019-1. http://resolver.caltech.edu/CaltechAUTHORS:20160126-135845277

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Abstract

It is well known that many common ferroelectric materials are also ferroelastic, thus the nonlinear behavior of these materials, as governed by domain motion, is highly affected by stress, as well as electric field. The combined influence of stress and electric field on domain motion and the electrostrictive response of ferroelectric single crystals is investigated. Experiments are performed on (001) and (100) oriented single crystals of barium titanate under combined electro-mechanical loading. The crystal is exposed to a constant compressive stress and an oscillating electric field along the [001] direction. Global deformation and polarization are measured as a function of electric field at different values of compressive stress. The use of semi-transparent electrodes and transmitted illumination allow in situ, real-time microscopic observations of domain motion using a long working-distance, polarizing microscope. The combined electro-mechanical loading results in a cycle of stress and electric field induced 90-degree domain switching. The magnitude of the global deformation increases with stress, with maximum steady state actuation strain of 0.57%.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/12.432748DOIArticle
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=908295PublisherArticle
ORCID:
AuthorORCID
Bhattacharya, Kaushik0000-0003-2908-5469
Additional Information:© 2001 Society of Photo-Optical Instrumentation Engineers. We gratefully acknowledge the support of the Army Research Office (M.A. Zikry, Program Manager) under grant DAAD 19-99-1-0319. This work was supported in part by the MRSEC Program of the National Science Foundation under Award Number DMR-0080065.
Group:GALCIT
Funders:
Funding AgencyGrant Number
Army Research Office (ARO)DAAD 19-99-1-0319
NSFDMR-0080065
Subject Keywords:ferroelectric crystals, barium titanate, domain switching, electrostriction
Record Number:CaltechAUTHORS:20160126-135845277
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20160126-135845277
Official Citation:Eric N. Burcsu ; Guruswaminaidu Ravichandran and Kaushik Bhattacharya "Electromechanical behavior of 90-degree domain motion in barium titanate single crystals", Proc. SPIE 4333, Smart Structures and Materials 2001: Active Materials: Behavior and Mechanics, 121 (July 11, 2001); doi:10.1117/12.432748; http://dx.doi.org/10.1117/12.432748
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:63981
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:27 Jan 2016 00:04
Last Modified:29 Sep 2016 23:17

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