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...

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Main Authors: Kaige Gao, Binbin Zhang, Yunqing Cao, Xiaobing Chen
Format: Article
Language:English
Published: The Royal Society 2018-01-01
Series:Royal Society Open Science
Subjects:
Online Access:https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.181397
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spelling doaj-a164a17d0c8b44dabc4c16bb7204dd882020-11-25T03:43:54ZengThe Royal SocietyRoyal Society Open Science2054-57032018-01-0151110.1098/rsos.181397181397Doping induced dielectric anomaly below the Curie temperature in molecular ferroelectric diisopropylammonium bromideKaige GaoBinbin ZhangYunqing CaoXiaobing ChenA 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.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.181397dopingdielectric anomalymolecular ferroelectricdiisopropylammonium bromide
collection DOAJ
language English
format Article
sources DOAJ
author Kaige Gao
Binbin Zhang
Yunqing Cao
Xiaobing Chen
spellingShingle Kaige Gao
Binbin Zhang
Yunqing Cao
Xiaobing Chen
Doping induced dielectric anomaly below the Curie temperature in molecular ferroelectric diisopropylammonium bromide
Royal Society Open Science
doping
dielectric anomaly
molecular ferroelectric
diisopropylammonium bromide
author_facet Kaige Gao
Binbin Zhang
Yunqing Cao
Xiaobing Chen
author_sort Kaige Gao
title 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_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_sort doping induced dielectric anomaly below the curie temperature in molecular ferroelectric diisopropylammonium bromide
publisher The Royal Society
series Royal Society Open Science
issn 2054-5703
publishDate 2018-01-01
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.
topic doping
dielectric anomaly
molecular ferroelectric
diisopropylammonium bromide
url https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.181397
work_keys_str_mv AT kaigegao dopinginduceddielectricanomalybelowthecurietemperatureinmolecularferroelectricdiisopropylammoniumbromide
AT binbinzhang dopinginduceddielectricanomalybelowthecurietemperatureinmolecularferroelectricdiisopropylammoniumbromide
AT yunqingcao dopinginduceddielectricanomalybelowthecurietemperatureinmolecularferroelectricdiisopropylammoniumbromide
AT xiaobingchen dopinginduceddielectricanomalybelowthecurietemperatureinmolecularferroelectricdiisopropylammoniumbromide
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