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Local strain-induced 90 degrees domain switching in a barium titanate single crystal
- Authors
- Park, J.-H.; Park, J.; Lee, K.-B.; Koo, T.-Y.; Youn, H. S.; Ko, Y. D.; Chung, J.-S.; Hwang, J. Y.; Jeong, S.-Y.
- Issue Date
- 2-Jul-2007
- Publisher
- AMER INST PHYSICS
- Citation
- APPLIED PHYSICS LETTERS, v.91, no.1
- Journal Title
- APPLIED PHYSICS LETTERS
- Volume
- 91
- Number
- 1
- ISSN
- 0003-6951
- Abstract
- Local strain analysis for a BaTiO(3) single crystal under electric loads was conducted using x-ray microdiffraction technique. During the polarization reversal, local 90 degrees domain switchings were observed at certain positions instead of uniform 180 degrees domain switching. Field-dependent strain analysis demonstrated that inhomogeneous domain switching was strongly related to local strain distributions. The results can be understood in terms of competition between elastic and electrostatic energies and provide a crystallographic evidence for the role of local strains on 90 degrees domain switching. (C) 2007 American Institute of Physics.
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Related Researcher
- Chung, Jin Seok
- College of Natural Sciences (Department of Physics)