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Epitaxially stabilized thin films of ε-Fe(2)O(3) (001) grown on YSZ (100)
Epsilon ferrite (ε-Fe(2)O(3)) is a metastable phase of iron(III) oxide, intermediate between maghemite and hematite. It has recently attracted interest because of its magnetocrystalline anisotropy, which distinguishes it from the other polymorphs, and results in a gigantic coercive field and a natur...
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/PMC5473884/ https://www.ncbi.nlm.nih.gov/pubmed/28623261 http://dx.doi.org/10.1038/s41598-017-02742-9 |
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author | Corbellini, Luca Lacroix, Christian Harnagea, Catalin Korinek, Andreas Botton, Gianluigi A. Ménard, David Pignolet, Alain |
author_facet | Corbellini, Luca Lacroix, Christian Harnagea, Catalin Korinek, Andreas Botton, Gianluigi A. Ménard, David Pignolet, Alain |
author_sort | Corbellini, Luca |
collection | PubMed |
description | Epsilon ferrite (ε-Fe(2)O(3)) is a metastable phase of iron(III) oxide, intermediate between maghemite and hematite. It has recently attracted interest because of its magnetocrystalline anisotropy, which distinguishes it from the other polymorphs, and results in a gigantic coercive field and a natural ferromagnetic resonance frequency in the THz range. Moreover, it possesses a polar crystal structure, making it a potential ferroelectric, hence a potential multiferroic. Due to the need of size confinement to stabilize the metastable phase, ε-Fe(2)O(3) has been synthesized mainly as nanoparticles. However, to favor integration in devices, and take advantage of its unique functional properties, synthesis as epitaxial thin films is desirable. In this paper, we report the growth of ε-Fe(2)O(3) as epitaxial thin films on (100)-oriented yttrium-stabilized zirconia substrates. Structural characterization outlined the formation of multiple in-plane twins, with two different epitaxial relations to the substrate. Transmission electron microscopy showed how such twins develop in a pillar-like structure from the interface to the surface. Magnetic characterization confirmed the high magnetocrystalline anisotropy of our film and revealed the presence of a secondary phase which was identified as the well-known magnetite. Finally, angular analysis of the magnetic properties revealed how the presence of twins impacts their azimuthal dependence. |
format | Online Article Text |
id | pubmed-5473884 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-54738842017-06-21 Epitaxially stabilized thin films of ε-Fe(2)O(3) (001) grown on YSZ (100) Corbellini, Luca Lacroix, Christian Harnagea, Catalin Korinek, Andreas Botton, Gianluigi A. Ménard, David Pignolet, Alain Sci Rep Article Epsilon ferrite (ε-Fe(2)O(3)) is a metastable phase of iron(III) oxide, intermediate between maghemite and hematite. It has recently attracted interest because of its magnetocrystalline anisotropy, which distinguishes it from the other polymorphs, and results in a gigantic coercive field and a natural ferromagnetic resonance frequency in the THz range. Moreover, it possesses a polar crystal structure, making it a potential ferroelectric, hence a potential multiferroic. Due to the need of size confinement to stabilize the metastable phase, ε-Fe(2)O(3) has been synthesized mainly as nanoparticles. However, to favor integration in devices, and take advantage of its unique functional properties, synthesis as epitaxial thin films is desirable. In this paper, we report the growth of ε-Fe(2)O(3) as epitaxial thin films on (100)-oriented yttrium-stabilized zirconia substrates. Structural characterization outlined the formation of multiple in-plane twins, with two different epitaxial relations to the substrate. Transmission electron microscopy showed how such twins develop in a pillar-like structure from the interface to the surface. Magnetic characterization confirmed the high magnetocrystalline anisotropy of our film and revealed the presence of a secondary phase which was identified as the well-known magnetite. Finally, angular analysis of the magnetic properties revealed how the presence of twins impacts their azimuthal dependence. Nature Publishing Group UK 2017-06-16 /pmc/articles/PMC5473884/ /pubmed/28623261 http://dx.doi.org/10.1038/s41598-017-02742-9 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 Corbellini, Luca Lacroix, Christian Harnagea, Catalin Korinek, Andreas Botton, Gianluigi A. Ménard, David Pignolet, Alain Epitaxially stabilized thin films of ε-Fe(2)O(3) (001) grown on YSZ (100) |
title | Epitaxially stabilized thin films of ε-Fe(2)O(3) (001) grown on YSZ (100) |
title_full | Epitaxially stabilized thin films of ε-Fe(2)O(3) (001) grown on YSZ (100) |
title_fullStr | Epitaxially stabilized thin films of ε-Fe(2)O(3) (001) grown on YSZ (100) |
title_full_unstemmed | Epitaxially stabilized thin films of ε-Fe(2)O(3) (001) grown on YSZ (100) |
title_short | Epitaxially stabilized thin films of ε-Fe(2)O(3) (001) grown on YSZ (100) |
title_sort | epitaxially stabilized thin films of ε-fe(2)o(3) (001) grown on ysz (100) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5473884/ https://www.ncbi.nlm.nih.gov/pubmed/28623261 http://dx.doi.org/10.1038/s41598-017-02742-9 |
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