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A rapid two-dimensional data collection system for the study of ferroelectric materials under external applied electric fields
Synchrotron X-rays on the Swiss Norwegian Beamline and BM28 (XMaS) at the ESRF have been used to record the diffraction response of the PMN–PT relaxor piezoelectric 67% Pb(Mg(1/3)Nb(2/3))O(3)–33% PbTiO(3) as a function of externally applied electric field. A DC field in the range 0–18 kV cm(−1) was...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5045728/ https://www.ncbi.nlm.nih.gov/pubmed/27738414 http://dx.doi.org/10.1107/S1600576716011341 |
Sumario: | Synchrotron X-rays on the Swiss Norwegian Beamline and BM28 (XMaS) at the ESRF have been used to record the diffraction response of the PMN–PT relaxor piezoelectric 67% Pb(Mg(1/3)Nb(2/3))O(3)–33% PbTiO(3) as a function of externally applied electric field. A DC field in the range 0–18 kV cm(−1) was applied along the [001] pseudo-cubic direction using a specially designed sample cell for in situ single-crystal diffraction experiments. The cell allowed data to be collected on a Pilatus 2M area detector in a large volume of reciprocal space using transmission geometry. The data showed good agreement with a twinned single-phase monoclinic structure model. The results from the area detector were compared with previous Bragg peak mapping using variable electric fields and a single detector where the structural model was ambiguous. The coverage of a significantly larger section of reciprocal space facilitated by the area detector allowed precise phase analysis. |
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