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Induced Ferromagnetism at BiFeO(3)/YBa(2)Cu(3)O(7) Interfaces

Transition metal oxides (TMOs) exhibit many emergent phenomena ranging from high-temperature superconductivity and giant magnetoresistance to magnetism and ferroelectricity. In addition, when TMOs are interfaced with each other, new functionalities can arise, which are absent in individual component...

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Autores principales: Zhu, Jian-Xin, Wen, Xiao-Dong, Haraldsen, J. T., He, Mi, Panagopoulos, C., Chia, Elbert E. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4064357/
https://www.ncbi.nlm.nih.gov/pubmed/24947500
http://dx.doi.org/10.1038/srep05368
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author Zhu, Jian-Xin
Wen, Xiao-Dong
Haraldsen, J. T.
He, Mi
Panagopoulos, C.
Chia, Elbert E. M.
author_facet Zhu, Jian-Xin
Wen, Xiao-Dong
Haraldsen, J. T.
He, Mi
Panagopoulos, C.
Chia, Elbert E. M.
author_sort Zhu, Jian-Xin
collection PubMed
description Transition metal oxides (TMOs) exhibit many emergent phenomena ranging from high-temperature superconductivity and giant magnetoresistance to magnetism and ferroelectricity. In addition, when TMOs are interfaced with each other, new functionalities can arise, which are absent in individual components. Here, we report results from first-principles calculations on the magnetism at the BiFeO(3)/YBa(2)Cu(3)O(7) interfaces. By comparing the total energy for various magnetic spin configurations inside BiFeO(3), we are able to show that a metallic ferromagnetism is induced near the interface. We further develop an interface exchange-coupling model and place the extracted exchange coupling interaction strengths, from the first-principles calculations, into a resultant generic phase diagram. Our conclusion of interfacial ferromagnetism is confirmed by the presence of a hysteresis loop in field-dependent magnetization data. The emergence of interfacial ferromagnetism should have implications to electronic and transport properties.
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spelling pubmed-40643572014-06-23 Induced Ferromagnetism at BiFeO(3)/YBa(2)Cu(3)O(7) Interfaces Zhu, Jian-Xin Wen, Xiao-Dong Haraldsen, J. T. He, Mi Panagopoulos, C. Chia, Elbert E. M. Sci Rep Article Transition metal oxides (TMOs) exhibit many emergent phenomena ranging from high-temperature superconductivity and giant magnetoresistance to magnetism and ferroelectricity. In addition, when TMOs are interfaced with each other, new functionalities can arise, which are absent in individual components. Here, we report results from first-principles calculations on the magnetism at the BiFeO(3)/YBa(2)Cu(3)O(7) interfaces. By comparing the total energy for various magnetic spin configurations inside BiFeO(3), we are able to show that a metallic ferromagnetism is induced near the interface. We further develop an interface exchange-coupling model and place the extracted exchange coupling interaction strengths, from the first-principles calculations, into a resultant generic phase diagram. Our conclusion of interfacial ferromagnetism is confirmed by the presence of a hysteresis loop in field-dependent magnetization data. The emergence of interfacial ferromagnetism should have implications to electronic and transport properties. Nature Publishing Group 2014-06-20 /pmc/articles/PMC4064357/ /pubmed/24947500 http://dx.doi.org/10.1038/srep05368 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/
spellingShingle Article
Zhu, Jian-Xin
Wen, Xiao-Dong
Haraldsen, J. T.
He, Mi
Panagopoulos, C.
Chia, Elbert E. M.
Induced Ferromagnetism at BiFeO(3)/YBa(2)Cu(3)O(7) Interfaces
title Induced Ferromagnetism at BiFeO(3)/YBa(2)Cu(3)O(7) Interfaces
title_full Induced Ferromagnetism at BiFeO(3)/YBa(2)Cu(3)O(7) Interfaces
title_fullStr Induced Ferromagnetism at BiFeO(3)/YBa(2)Cu(3)O(7) Interfaces
title_full_unstemmed Induced Ferromagnetism at BiFeO(3)/YBa(2)Cu(3)O(7) Interfaces
title_short Induced Ferromagnetism at BiFeO(3)/YBa(2)Cu(3)O(7) Interfaces
title_sort induced ferromagnetism at bifeo(3)/yba(2)cu(3)o(7) interfaces
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4064357/
https://www.ncbi.nlm.nih.gov/pubmed/24947500
http://dx.doi.org/10.1038/srep05368
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