Room temperature ferroelectricity in fluoroperovskite thin films

Abstract The NaMnF3 fluoride-perovskite has been found, theoretically, to be ferroelectric under epitaxial strain becoming a promising alternative to conventional oxides for multiferroic applications. Nevertheless, this fluoroperovskite has not been experimentally verified to be ferroelectric so far...

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Autores principales:	Ming Yang, Amit KC, A. C. Garcia-Castro, Pavel Borisov, E. Bousquet, David Lederman, Aldo H. Romero, Cheng Cen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9b36e039cb684dd18977fcc700337d6f
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spelling	oai:doaj.org-article:9b36e039cb684dd18977fcc700337d6f2021-12-02T12:32:04ZRoom temperature ferroelectricity in fluoroperovskite thin films10.1038/s41598-017-07834-02045-2322https://doaj.org/article/9b36e039cb684dd18977fcc700337d6f2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07834-0https://doaj.org/toc/2045-2322Abstract The NaMnF3 fluoride-perovskite has been found, theoretically, to be ferroelectric under epitaxial strain becoming a promising alternative to conventional oxides for multiferroic applications. Nevertheless, this fluoroperovskite has not been experimentally verified to be ferroelectric so far. Here we report signatures of room temperature ferroelectricity observed in perovskite NaMnF3 thin films grown on SrTiO3. Using piezoresponse force microscopy, we studied the evolution of ferroelectric polarization in response to external and built-in electric fields. Density functional theory calculations were also performed to help understand the strong competition between ferroelectric and paraelectric phases as well as the profound influences of strain. These results, together with the magnetic order previously reported in the same material, pave the way to future multiferroic and magnetoelectric investigations in fluoroperovskites.Ming YangAmit KCA. C. Garcia-CastroPavel BorisovE. BousquetDavid LedermanAldo H. RomeroCheng CenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ming Yang Amit KC A. C. Garcia-Castro Pavel Borisov E. Bousquet David Lederman Aldo H. Romero Cheng Cen Room temperature ferroelectricity in fluoroperovskite thin films
description	Abstract The NaMnF3 fluoride-perovskite has been found, theoretically, to be ferroelectric under epitaxial strain becoming a promising alternative to conventional oxides for multiferroic applications. Nevertheless, this fluoroperovskite has not been experimentally verified to be ferroelectric so far. Here we report signatures of room temperature ferroelectricity observed in perovskite NaMnF3 thin films grown on SrTiO3. Using piezoresponse force microscopy, we studied the evolution of ferroelectric polarization in response to external and built-in electric fields. Density functional theory calculations were also performed to help understand the strong competition between ferroelectric and paraelectric phases as well as the profound influences of strain. These results, together with the magnetic order previously reported in the same material, pave the way to future multiferroic and magnetoelectric investigations in fluoroperovskites.
format	article
author	Ming Yang Amit KC A. C. Garcia-Castro Pavel Borisov E. Bousquet David Lederman Aldo H. Romero Cheng Cen
author_facet	Ming Yang Amit KC A. C. Garcia-Castro Pavel Borisov E. Bousquet David Lederman Aldo H. Romero Cheng Cen
author_sort	Ming Yang
title	Room temperature ferroelectricity in fluoroperovskite thin films
title_short	Room temperature ferroelectricity in fluoroperovskite thin films
title_full	Room temperature ferroelectricity in fluoroperovskite thin films
title_fullStr	Room temperature ferroelectricity in fluoroperovskite thin films
title_full_unstemmed	Room temperature ferroelectricity in fluoroperovskite thin films
title_sort	room temperature ferroelectricity in fluoroperovskite thin films
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/9b36e039cb684dd18977fcc700337d6f
work_keys_str_mv	AT mingyang roomtemperatureferroelectricityinfluoroperovskitethinfilms AT amitkc roomtemperatureferroelectricityinfluoroperovskitethinfilms AT acgarciacastro roomtemperatureferroelectricityinfluoroperovskitethinfilms AT pavelborisov roomtemperatureferroelectricityinfluoroperovskitethinfilms AT ebousquet roomtemperatureferroelectricityinfluoroperovskitethinfilms AT davidlederman roomtemperatureferroelectricityinfluoroperovskitethinfilms AT aldohromero roomtemperatureferroelectricityinfluoroperovskitethinfilms AT chengcen roomtemperatureferroelectricityinfluoroperovskitethinfilms
_version_	1718394174382800896

Room temperature ferroelectricity in fluoroperovskite thin films

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