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Electric field and aging effects of uniaxial ferroelectrics Sr(x)Ba(1−x)Nb(2)O(6) probed by Brillouin scattering
Static and dynamic heterogeneity of disordered system is one of the current topics in materials science. In disordered ferroelectric materials with random fields, dynamic polar nanoregions (PNRs) appear at Burns temperature and freeze into nanodomain state below Curie temperature (T (C)). This state...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5599614/ https://www.ncbi.nlm.nih.gov/pubmed/28912424 http://dx.doi.org/10.1038/s41598-017-10985-9 |
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author | Aftabuzzaman, M. Helal, M. A. Paszkowski, R. Dec, J. Kleemann, W. Kojima, S. |
author_facet | Aftabuzzaman, M. Helal, M. A. Paszkowski, R. Dec, J. Kleemann, W. Kojima, S. |
author_sort | Aftabuzzaman, M. |
collection | PubMed |
description | Static and dynamic heterogeneity of disordered system is one of the current topics in materials science. In disordered ferroelectric materials with random fields, dynamic polar nanoregions (PNRs) appear at Burns temperature and freeze into nanodomain state below Curie temperature (T (C)). This state is very sensitive to external electric field and aging by which it gradually switches into macrodomain state. However, the role of PNRs in such states below T (C) is still a puzzling issue of materials science. Electric field and aging effects of uniaxial ferroelectric Sr(x)Ba(1−x)Nb(2)O(6) (x = 0.40, SBN40) single crystals were studied using Brillouin scattering to clarify the critical nature of PNRs in domain states below T (C). On field heating, a broad anomaly in longitudinal acoustic (LA) velocity at low temperature region was due to an incomplete alignment of nanodomains caused by the interaction between PNRs. A sharp anomaly near T (C) was attributed to the complete switching of nanodomain to macrodomain state owing to the lack of interaction among PNRs. After isothermal aging below T (C), the noticeable increase of LA velocity was observed. It was unaffected by cyclic temperature measurements up to T (C), and recovered to initial state outside of a narrow temperature range above and below aging temperature. |
format | Online Article Text |
id | pubmed-5599614 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-55996142017-09-15 Electric field and aging effects of uniaxial ferroelectrics Sr(x)Ba(1−x)Nb(2)O(6) probed by Brillouin scattering Aftabuzzaman, M. Helal, M. A. Paszkowski, R. Dec, J. Kleemann, W. Kojima, S. Sci Rep Article Static and dynamic heterogeneity of disordered system is one of the current topics in materials science. In disordered ferroelectric materials with random fields, dynamic polar nanoregions (PNRs) appear at Burns temperature and freeze into nanodomain state below Curie temperature (T (C)). This state is very sensitive to external electric field and aging by which it gradually switches into macrodomain state. However, the role of PNRs in such states below T (C) is still a puzzling issue of materials science. Electric field and aging effects of uniaxial ferroelectric Sr(x)Ba(1−x)Nb(2)O(6) (x = 0.40, SBN40) single crystals were studied using Brillouin scattering to clarify the critical nature of PNRs in domain states below T (C). On field heating, a broad anomaly in longitudinal acoustic (LA) velocity at low temperature region was due to an incomplete alignment of nanodomains caused by the interaction between PNRs. A sharp anomaly near T (C) was attributed to the complete switching of nanodomain to macrodomain state owing to the lack of interaction among PNRs. After isothermal aging below T (C), the noticeable increase of LA velocity was observed. It was unaffected by cyclic temperature measurements up to T (C), and recovered to initial state outside of a narrow temperature range above and below aging temperature. Nature Publishing Group UK 2017-09-14 /pmc/articles/PMC5599614/ /pubmed/28912424 http://dx.doi.org/10.1038/s41598-017-10985-9 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Aftabuzzaman, M. Helal, M. A. Paszkowski, R. Dec, J. Kleemann, W. Kojima, S. Electric field and aging effects of uniaxial ferroelectrics Sr(x)Ba(1−x)Nb(2)O(6) probed by Brillouin scattering |
title | Electric field and aging effects of uniaxial ferroelectrics Sr(x)Ba(1−x)Nb(2)O(6) probed by Brillouin scattering |
title_full | Electric field and aging effects of uniaxial ferroelectrics Sr(x)Ba(1−x)Nb(2)O(6) probed by Brillouin scattering |
title_fullStr | Electric field and aging effects of uniaxial ferroelectrics Sr(x)Ba(1−x)Nb(2)O(6) probed by Brillouin scattering |
title_full_unstemmed | Electric field and aging effects of uniaxial ferroelectrics Sr(x)Ba(1−x)Nb(2)O(6) probed by Brillouin scattering |
title_short | Electric field and aging effects of uniaxial ferroelectrics Sr(x)Ba(1−x)Nb(2)O(6) probed by Brillouin scattering |
title_sort | electric field and aging effects of uniaxial ferroelectrics sr(x)ba(1−x)nb(2)o(6) probed by brillouin scattering |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5599614/ https://www.ncbi.nlm.nih.gov/pubmed/28912424 http://dx.doi.org/10.1038/s41598-017-10985-9 |
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