X-ray white beam topography of self-organized domains in flux-grown BaTiO3 single crystals
The phenomenon of self-organization of domains into a “square-net pattern” in single-crystal, flux-grown BaTiO3 several degrees below the ferroelectric to paraelectric phase transition was investigated using in situ synchrotron x-ray topography. The tetragonal distortion of the crystal was determine...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
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American Physical Society
2016
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| _version_ | 1797093870263074816 |
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| author | Walker, D Glazer, A Gorfman, S Baruchel, J Pernot, P Kluender, R Masiello, F DeVreugd, C Thomas, P |
| author_facet | Walker, D Glazer, A Gorfman, S Baruchel, J Pernot, P Kluender, R Masiello, F DeVreugd, C Thomas, P |
| author_sort | Walker, D |
| collection | OXFORD |
| description | The phenomenon of self-organization of domains into a “square-net pattern” in single-crystal, flux-grown BaTiO3 several degrees below the ferroelectric to paraelectric phase transition was investigated using in situ synchrotron x-ray topography. The tetragonal distortion of the crystal was determined by measuring the angular separation between the diffraction images received from 90° a and c domains in the projection topographs, and shows a rapid decrease towards 110 °C, the onset temperature for self-organization. The onset of self-organization is accompanied by bending of the {100} lattice planes parallel to the crystal surface, which produces a strain that persists up to and beyond the Curie temperature, where the crystal becomes cubic and the self-organized domains disappear. At the Curie point, the bending angle α100 = 8.1(±0.3) mrad is at a maximum and corresponds to the radius of curvature of the surface being 16.3(±0.6) mm. |
| first_indexed | 2024-03-07T04:06:22Z |
| format | Journal article |
| id | oxford-uuid:c650843b-73b9-4173-b7d7-7eeb1398c5f8 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T04:06:22Z |
| publishDate | 2016 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:c650843b-73b9-4173-b7d7-7eeb1398c5f82022-03-27T06:37:10ZX-ray white beam topography of self-organized domains in flux-grown BaTiO3 single crystalsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c650843b-73b9-4173-b7d7-7eeb1398c5f8Symplectic Elements at OxfordAmerican Physical Society2016Walker, DGlazer, AGorfman, SBaruchel, JPernot, PKluender, RMasiello, FDeVreugd, CThomas, PThe phenomenon of self-organization of domains into a “square-net pattern” in single-crystal, flux-grown BaTiO3 several degrees below the ferroelectric to paraelectric phase transition was investigated using in situ synchrotron x-ray topography. The tetragonal distortion of the crystal was determined by measuring the angular separation between the diffraction images received from 90° a and c domains in the projection topographs, and shows a rapid decrease towards 110 °C, the onset temperature for self-organization. The onset of self-organization is accompanied by bending of the {100} lattice planes parallel to the crystal surface, which produces a strain that persists up to and beyond the Curie temperature, where the crystal becomes cubic and the self-organized domains disappear. At the Curie point, the bending angle α100 = 8.1(±0.3) mrad is at a maximum and corresponds to the radius of curvature of the surface being 16.3(±0.6) mm. |
| spellingShingle | Walker, D Glazer, A Gorfman, S Baruchel, J Pernot, P Kluender, R Masiello, F DeVreugd, C Thomas, P X-ray white beam topography of self-organized domains in flux-grown BaTiO3 single crystals |
| title | X-ray white beam topography of self-organized domains in flux-grown BaTiO3 single crystals |
| title_full | X-ray white beam topography of self-organized domains in flux-grown BaTiO3 single crystals |
| title_fullStr | X-ray white beam topography of self-organized domains in flux-grown BaTiO3 single crystals |
| title_full_unstemmed | X-ray white beam topography of self-organized domains in flux-grown BaTiO3 single crystals |
| title_short | X-ray white beam topography of self-organized domains in flux-grown BaTiO3 single crystals |
| title_sort | x ray white beam topography of self organized domains in flux grown batio3 single crystals |
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