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Title: Electric-field-induced strain mechanisms in lead-free 94%(Bi1/2Na1/2)TiO3–6%BaTiO3.
Authors: Simons, H
Daniels, JE
Jo, W
Dittmer, R
Studer, AJ
Avdeev, M
Rodel, J
Hoffman, M
Keywords: Neutron diffraction
Electric fields
Issue Date: 21-Feb-2011
Publisher: American Institute of Physics
Citation: Simons, H., Daniels, J., Jo, W., Dittmer, R., Studer, A., Avdeev, M., Rodel, J., & Hoffman, M. (2011). Electric-field-induced strain mechanisms in lead-free 94%(Bi1/2Na1/2)TiO3–6%BaTiO3. Applied Physics Letters, 98(8), 082901. doi:10.1063/1.3557049
Abstract: High resolution neutron diffraction has been used to investigate the structural origin of the large electric-field-induced remanent strain in 94(Bi1/2Na1/2)TiO3–6BaTiO3 ceramics. The virgin material was found to be a mixture of near-cubic phases with slight tetragonal and rhombohedral distortions of a0a0c+ and a−a−a− octahedral tilt type, respectively. Application of an electric field of 4.57 kV/mm transformed the sample to a predominantly rhombohedral a−a−a− modification with a significantly higher degree of structural distortion and a pronounced preferred orientation of the c-axis along the field direction. These electric field-induced structural effects contribute significantly to the macroscopic strain and polarization of this system. © 2011, American Institute of Physics
Gov't Doc #: 3319
ISSN: 0003-6951
Appears in Collections:Journal Articles

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