Park, Young-Bae and Dicken, Matthew J. and Xu, Zhi-Hui and Li, Xiaodong (2007) Nanoindentation of the a and c domains in a tetragonal BaTiO3 single crystal. Journal of Applied Physics, 102 (8). Art. No. 083507. ISSN 0021-8979. doi:10.1063/1.2795664. https://resolver.caltech.edu/CaltechAUTHORS:PARjap07b
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Abstract
Nanoindentation in conjunction with piezoresponse force microscopy was used to study domain switching and to measure the mechanical properties of individual ferroelectric domains in a tetragonal BaTiO3 single crystal. It was found that nanoindentation has induced local domain switching; the a and c domains of BaTiO3 have different elastic moduli but similar hardness. Nanoindentation modulus mapping on the a and c domains further confirmed such difference in elasticity. Finite element modeling was used to simulate the von Mises stress and plastic strain profiles of the indentations on both a and c domains, which introduces a much higher stress level than the critical value for domain nucleation.
| Item Type: | Article | ||||||
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| Additional Information: | © 2007 American Institute of Physics. (Received 1 July 2007; accepted 17 August 2007; published online 17 October 2007) This work has been supported by the National Science Foundation (Grant No. EPS-0296165) and the University of South Carolina NanoCenter. | ||||||
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| Subject Keywords: | barium compounds; elastic moduli; elasticity; electric domains; ferroelectric materials; ferroelectric switching; finite element analysis; hardness; indentation; nucleation; plastic deformation | ||||||
| Issue or Number: | 8 | ||||||
| DOI: | 10.1063/1.2795664 | ||||||
| Record Number: | CaltechAUTHORS:PARjap07b | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:PARjap07b | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 9020 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Archive Administrator | ||||||
| Deposited On: | 20 Oct 2007 | ||||||
| Last Modified: | 08 Nov 2021 20:55 |
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