Voltage-controlled rotation of magnetic anisotropy in the Ni90Fe10/BaTiO3(001) heterostructure

In this work, we demonstrate the voltage control of magnetic anisotropy in a strain-mediated Ni90Fe10/BaTiO3(001) heterostructure. In the pristine state of the heterostructure, the magneto-optical Kerr effect measurements show a transcritical hysteresis loop for the Ni90Fe10 film, indicating a weak...

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Autores: Begué, A., Khaliq, M. W., Cotón, N., Lorenzo-Feijoo, I., Niño, M. A., Foerster, M., Ranchal, R.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Recursos:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:162276
Acesso em linha:http://zaguan.unizar.es/record/162276
Access Level:acceso abierto
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spelling Voltage-controlled rotation of magnetic anisotropy in the Ni90Fe10/BaTiO3(001) heterostructureBegué, A.Khaliq, M. W.Cotón, N.Lorenzo-Feijoo, I.Niño, M. A.Foerster, M.Ranchal, R.In this work, we demonstrate the voltage control of magnetic anisotropy in a strain-mediated Ni90Fe10/BaTiO3(001) heterostructure. In the pristine state of the heterostructure, the magneto-optical Kerr effect measurements show a transcritical hysteresis loop for the Ni90Fe10 film, indicating a weak perpendicular anisotropy. This was further confirmed by X-ray magnetic circular dichroism – photoemission electron microscopy, revealing stripe domains in this film. X-ray diffraction analysis of the BaTiO3 substrate under varying electric fields was used to analyze the orientation of ferroelectric domains. These results indicated that BaTiO3 exhibits two distinct states depending on the applied electric field: one with domains aligned with the electric field and another with random domain orientation when the field is removed. After substrate poling, the Ni90Fe10 layer switches from weak perpendicular anisotropy to an in-plane uniaxial magnetic anisotropy, with the in-plane direction of anisotropy being controllable by 90° through an electric field. This effect is due to an efficient strain transfer from BaTiO3 to the Ni90Fe10 lattice, induced by ferroelectric polarization, as shown by XRD. Remarkably, this rotation of the magnetic anisotropy leads to an enhanced converse magnetoelectric coupling value of 1.43 μs m−1, surpassing previously reported values for other BaTiO3-based heterostructures by an order of magnitude. These results emphasize the potential of Ni90Fe10 alloys for next-generation magnetoelectric devices.2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/162276reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/MICINN-AEI-FEDER/PID2021-1122980OB-C51info:eu-repo/grantAgreement/ES/MICINN-AEI-FEDER/PID2021-122980OB-C54info:eu-repo/semantics/openAccessoai:zaguan.unizar.es:1622762026-05-29T13:59:51Z
dc.title.none.fl_str_mv Voltage-controlled rotation of magnetic anisotropy in the Ni90Fe10/BaTiO3(001) heterostructure
title Voltage-controlled rotation of magnetic anisotropy in the Ni90Fe10/BaTiO3(001) heterostructure
spellingShingle Voltage-controlled rotation of magnetic anisotropy in the Ni90Fe10/BaTiO3(001) heterostructure
Begué, A.
title_short Voltage-controlled rotation of magnetic anisotropy in the Ni90Fe10/BaTiO3(001) heterostructure
title_full Voltage-controlled rotation of magnetic anisotropy in the Ni90Fe10/BaTiO3(001) heterostructure
title_fullStr Voltage-controlled rotation of magnetic anisotropy in the Ni90Fe10/BaTiO3(001) heterostructure
title_full_unstemmed Voltage-controlled rotation of magnetic anisotropy in the Ni90Fe10/BaTiO3(001) heterostructure
title_sort Voltage-controlled rotation of magnetic anisotropy in the Ni90Fe10/BaTiO3(001) heterostructure
dc.creator.none.fl_str_mv Begué, A.
Khaliq, M. W.
Cotón, N.
Lorenzo-Feijoo, I.
Niño, M. A.
Foerster, M.
Ranchal, R.
author Begué, A.
author_facet Begué, A.
Khaliq, M. W.
Cotón, N.
Lorenzo-Feijoo, I.
Niño, M. A.
Foerster, M.
Ranchal, R.
author_role author
author2 Khaliq, M. W.
Cotón, N.
Lorenzo-Feijoo, I.
Niño, M. A.
Foerster, M.
Ranchal, R.
author2_role author
author
author
author
author
author
description In this work, we demonstrate the voltage control of magnetic anisotropy in a strain-mediated Ni90Fe10/BaTiO3(001) heterostructure. In the pristine state of the heterostructure, the magneto-optical Kerr effect measurements show a transcritical hysteresis loop for the Ni90Fe10 film, indicating a weak perpendicular anisotropy. This was further confirmed by X-ray magnetic circular dichroism – photoemission electron microscopy, revealing stripe domains in this film. X-ray diffraction analysis of the BaTiO3 substrate under varying electric fields was used to analyze the orientation of ferroelectric domains. These results indicated that BaTiO3 exhibits two distinct states depending on the applied electric field: one with domains aligned with the electric field and another with random domain orientation when the field is removed. After substrate poling, the Ni90Fe10 layer switches from weak perpendicular anisotropy to an in-plane uniaxial magnetic anisotropy, with the in-plane direction of anisotropy being controllable by 90° through an electric field. This effect is due to an efficient strain transfer from BaTiO3 to the Ni90Fe10 lattice, induced by ferroelectric polarization, as shown by XRD. Remarkably, this rotation of the magnetic anisotropy leads to an enhanced converse magnetoelectric coupling value of 1.43 μs m−1, surpassing previously reported values for other BaTiO3-based heterostructures by an order of magnitude. These results emphasize the potential of Ni90Fe10 alloys for next-generation magnetoelectric devices.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/162276
url http://zaguan.unizar.es/record/162276
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/MICINN-AEI-FEDER/PID2021-1122980OB-C51
info:eu-repo/grantAgreement/ES/MICINN-AEI-FEDER/PID2021-122980OB-C54
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv
publisher.none.fl_str_mv
dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
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