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Quantitative high-dynamic-range electron diffraction of polar nanodomains in Pb2 ScTaO6
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Peters, Jonathan J. P., Sanchez, Ana M., Walker, David, Whatmore, Roger and Beanland, R. (2019) Quantitative high-dynamic-range electron diffraction of polar nanodomains in Pb2 ScTaO6. Advanced Materials . 1806498. doi:10.1002/adma.201806498 (In Press)
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WRAP-quantitative-high-dynamic-range-electron-diffraction-polar-nanodomains-Pb2-ScTaO6-Peters-2019.pdf - Accepted Version Embargoed item. Restricted access to Repository staff only until 6 December 2019. Contact author directly, specifying your specific needs. - Requires a PDF viewer. Download (4Mb) |
Official URL: http://dx.doi.org/10.1002/adma.201806498
Abstract
Highly B‐site ordered Pb2ScTaO6 crystals are studied as a function of temperature via dielectric spectroscopy and in situ high‐dynamic‐range electron diffraction. The degree of ordering is examined on the local and macroscopic scale and is determined to be 76%. Novel analysis of the electron diffraction patterns provides structural information with two types of antiferroelectric displacements determined to be present in the polar structure. It is then found that a low‐temperature transition occurs on cooling at ≈210 K that is not present on heating. This phenomenon is discussed in terms of the freezing of dynamic polar nanodomains where a high density of domain walls creates a metastable state.
| Item Type: | Journal Article | ||||||||
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| Subjects: | Q Science > QC Physics | ||||||||
| Divisions: | Faculty of Science > Chemistry Faculty of Science > Physics |
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| Library of Congress Subject Headings (LCSH): | Ferroelectric crystals, Perovskite | ||||||||
| Journal or Publication Title: | Advanced Materials | ||||||||
| Publisher: | Wiley | ||||||||
| ISSN: | 0935-9648 | ||||||||
| Official Date: | 2019 | ||||||||
| Dates: |
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| Date of first compliant deposit: | 10 December 2018 | ||||||||
| Article Number: | 1806498 | ||||||||
| DOI: | 10.1002/adma.201806498 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | In Press | ||||||||
| Publisher Statement: | This is the peer reviewed version of the following article: 'Peters, Jonathan J. P., Sanchez, Ana M., Walker, David, Whatmore, Roger and Beanland, Richard (2019) Quantitative high-dynamic-range electron diffraction of polar nanodomains in Pb2 ScTaO6. Advanced Materials. 1806498. doi:10.1002/adma.201806498', which has been published in final form at https://doi.org/10.1002/adma.201806498. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| RIOXX Funder/Project Grant: |
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