Magnetoelectricity of CoFe(2)O(4) and tetragonal phase BiFeO(3) nanocomposites prepared by pulsed laser deposition

The coupling between the tetragonal phase (T-phase) of BiFeO(3) (BFO) and CoFe(2)O(4) (CFO) in magnetoelectric heterostructures has been studied. Bilayers of CFO and BFO were deposited on (001) LaAlO(3) single crystal substrates by pulsed laser deposition. After 30 min of annealing, the CFO top laye...

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Autores principales: Gao, Min, Viswan, Ravindranath, Tang, Xiao, Leung, Chung Ming, Li, Jiefang, Viehland, D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5762771/
https://www.ncbi.nlm.nih.gov/pubmed/29321643
http://dx.doi.org/10.1038/s41598-017-18788-8
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author Gao, Min
Viswan, Ravindranath
Tang, Xiao
Leung, Chung Ming
Li, Jiefang
Viehland, D.
author_facet Gao, Min
Viswan, Ravindranath
Tang, Xiao
Leung, Chung Ming
Li, Jiefang
Viehland, D.
author_sort Gao, Min
collection PubMed
description The coupling between the tetragonal phase (T-phase) of BiFeO(3) (BFO) and CoFe(2)O(4) (CFO) in magnetoelectric heterostructures has been studied. Bilayers of CFO and BFO were deposited on (001) LaAlO(3) single crystal substrates by pulsed laser deposition. After 30 min of annealing, the CFO top layer exhibited a T-phase-like structure, developing a platform-like morphology with BFO. Magnetic hysteresis loops exhibited a strong thickness effect of the CFO layer on the coercive field, in particular along the out-of-plane direction. Magnetic force microscopy images revealed that the T-phase CFO platform contained multiple magnetic domains, which could be tuned by applying a tip bias. A combination of shape, strain, and exchange coupling effects are used to explain the observations.
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spelling pubmed-57627712018-01-17 Magnetoelectricity of CoFe(2)O(4) and tetragonal phase BiFeO(3) nanocomposites prepared by pulsed laser deposition Gao, Min Viswan, Ravindranath Tang, Xiao Leung, Chung Ming Li, Jiefang Viehland, D. Sci Rep Article The coupling between the tetragonal phase (T-phase) of BiFeO(3) (BFO) and CoFe(2)O(4) (CFO) in magnetoelectric heterostructures has been studied. Bilayers of CFO and BFO were deposited on (001) LaAlO(3) single crystal substrates by pulsed laser deposition. After 30 min of annealing, the CFO top layer exhibited a T-phase-like structure, developing a platform-like morphology with BFO. Magnetic hysteresis loops exhibited a strong thickness effect of the CFO layer on the coercive field, in particular along the out-of-plane direction. Magnetic force microscopy images revealed that the T-phase CFO platform contained multiple magnetic domains, which could be tuned by applying a tip bias. A combination of shape, strain, and exchange coupling effects are used to explain the observations. Nature Publishing Group UK 2018-01-10 /pmc/articles/PMC5762771/ /pubmed/29321643 http://dx.doi.org/10.1038/s41598-017-18788-8 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
Gao, Min
Viswan, Ravindranath
Tang, Xiao
Leung, Chung Ming
Li, Jiefang
Viehland, D.
Magnetoelectricity of CoFe(2)O(4) and tetragonal phase BiFeO(3) nanocomposites prepared by pulsed laser deposition
title Magnetoelectricity of CoFe(2)O(4) and tetragonal phase BiFeO(3) nanocomposites prepared by pulsed laser deposition
title_full Magnetoelectricity of CoFe(2)O(4) and tetragonal phase BiFeO(3) nanocomposites prepared by pulsed laser deposition
title_fullStr Magnetoelectricity of CoFe(2)O(4) and tetragonal phase BiFeO(3) nanocomposites prepared by pulsed laser deposition
title_full_unstemmed Magnetoelectricity of CoFe(2)O(4) and tetragonal phase BiFeO(3) nanocomposites prepared by pulsed laser deposition
title_short Magnetoelectricity of CoFe(2)O(4) and tetragonal phase BiFeO(3) nanocomposites prepared by pulsed laser deposition
title_sort magnetoelectricity of cofe(2)o(4) and tetragonal phase bifeo(3) nanocomposites prepared by pulsed laser deposition
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5762771/
https://www.ncbi.nlm.nih.gov/pubmed/29321643
http://dx.doi.org/10.1038/s41598-017-18788-8
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