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Doping induced dielectric anomaly below the Curie temperature in molecular ferroelectric diisopropylammonium bromide
A dielectric anomaly induced by doping has been observed at about 340 K in chlorine-doped diisopropylammonium bromide. The dielectric anomaly has a switchable behaviour, which indicates potential applications on switches and sensors. Temperature-dependent Raman spectrum, X-ray diffraction and differ...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6281938/ https://www.ncbi.nlm.nih.gov/pubmed/30564423 http://dx.doi.org/10.1098/rsos.181397 |
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author | Gao, Kaige Zhang, Binbin Cao, Yunqing Chen, Xiaobing |
author_facet | Gao, Kaige Zhang, Binbin Cao, Yunqing Chen, Xiaobing |
author_sort | Gao, Kaige |
collection | PubMed |
description | A dielectric anomaly induced by doping has been observed at about 340 K in chlorine-doped diisopropylammonium bromide. The dielectric anomaly has a switchable behaviour, which indicates potential applications on switches and sensors. Temperature-dependent Raman spectrum, X-ray diffraction and differential scanning calorimetry do not show any anomaly around the dielectric anomaly temperature, which prove that the dielectric anomaly does not come from structure phase transition and has no specific heat variety. It is assumed that this dielectric anomaly can be attributed to the freezing of ferroelectric domain walls induced by the pinning of point defects. |
format | Online Article Text |
id | pubmed-6281938 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-62819382018-12-18 Doping induced dielectric anomaly below the Curie temperature in molecular ferroelectric diisopropylammonium bromide Gao, Kaige Zhang, Binbin Cao, Yunqing Chen, Xiaobing R Soc Open Sci Chemistry A dielectric anomaly induced by doping has been observed at about 340 K in chlorine-doped diisopropylammonium bromide. The dielectric anomaly has a switchable behaviour, which indicates potential applications on switches and sensors. Temperature-dependent Raman spectrum, X-ray diffraction and differential scanning calorimetry do not show any anomaly around the dielectric anomaly temperature, which prove that the dielectric anomaly does not come from structure phase transition and has no specific heat variety. It is assumed that this dielectric anomaly can be attributed to the freezing of ferroelectric domain walls induced by the pinning of point defects. The Royal Society 2018-11-28 /pmc/articles/PMC6281938/ /pubmed/30564423 http://dx.doi.org/10.1098/rsos.181397 Text en © 2018 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Chemistry Gao, Kaige Zhang, Binbin Cao, Yunqing Chen, Xiaobing Doping induced dielectric anomaly below the Curie temperature in molecular ferroelectric diisopropylammonium bromide |
title | Doping induced dielectric anomaly below the Curie temperature in molecular ferroelectric diisopropylammonium bromide |
title_full | Doping induced dielectric anomaly below the Curie temperature in molecular ferroelectric diisopropylammonium bromide |
title_fullStr | Doping induced dielectric anomaly below the Curie temperature in molecular ferroelectric diisopropylammonium bromide |
title_full_unstemmed | Doping induced dielectric anomaly below the Curie temperature in molecular ferroelectric diisopropylammonium bromide |
title_short | Doping induced dielectric anomaly below the Curie temperature in molecular ferroelectric diisopropylammonium bromide |
title_sort | doping induced dielectric anomaly below the curie temperature in molecular ferroelectric diisopropylammonium bromide |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6281938/ https://www.ncbi.nlm.nih.gov/pubmed/30564423 http://dx.doi.org/10.1098/rsos.181397 |
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