dc.contributor.authorZhu, Jian-Xin
dc.contributor.authorWen, Xiao-Dong
dc.contributor.authorHaraldsen, J. T.
dc.contributor.authorHe, Mi
dc.contributor.authorPanagopoulos, C.
dc.contributor.authorChia, Elbert E. M.
dc.identifier.citationZhu, J.-X., Wen, X.-D., Haraldsen, J. T., He, M., Panagopoulos, C., & Chia, E. E. M. (2014). Induced Ferromagnetism at BiFeO3/YBa2Cu3O7 Interfaces. Scientific Reports, 4.en_US
dc.description.abstractTransition 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 BiFeO3/YBa2Cu3O7 interfaces. By comparing the total energy for various magnetic spin configurations inside BiFeO3, 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.en_US
dc.relation.ispartofseriesScientific reportsen_US
dc.rightsThis 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/en_US
dc.subjectPhysics and Applied Physics
dc.titleInduced ferromagnetism at BiFeO3/YBa2Cu3O7 interfacesen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.description.versionPublished versionen_US

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