Pesquera, D. and Casals, B. and Thompson, J. E. and Nataf, G. F. and Moya, X. and Carpenter, M. A. (2019) Elastic anomalies associated with domain switching in BaTiO3 single crystals under in situ electrical cycling. APL Materials, 7 (5). 051109. ISSN 2166-532X DOI https://doi.org/10.1063/1.5088749
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Abstract
The elastic response of BaTiO3 single crystals during electric field cycling at room temperature has been studied using in situ Resonant Ultrasound Spectroscopy (RUS), which allows monitoring of both the elastic and anelastic changes caused by ferroelectric polarization switching. We find that the first ferroelectric switching of a virgin single crystal is dominated by ferroelastic 90° switching. In subsequent ferroelectric switching, ferroelastic switching is reduced by domain pinning and by the predominance of 180° ferroelectric domains, as confirmed by polarized light microscopy. RUS under in situ electric field therefore demonstrates to be an effective technique for the investigation of electromechanical coupling in ferroelectrics.
Item Type: | Article |
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Uncontrolled Keywords: | 2019AREP; IA76 |
Subjects: | 03 - Mineral Sciences |
Divisions: | 03 - Mineral Sciences 07 - Gold Open Access |
Journal or Publication Title: | APL Materials |
Volume: | 7 |
Page Range: | 051109 |
Identification Number: | https://doi.org/10.1063/1.5088749 |
Depositing User: | Sarah Humbert |
Date Deposited: | 16 Apr 2020 23:43 |
Last Modified: | 16 Apr 2020 23:43 |
URI: | http://eprints.esc.cam.ac.uk/id/eprint/4692 |
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