Sputtered terbium iron garnet films with perpendicular magnetic anisotropy for spintronic applications

We report the structural, magnetic, and interfacial spin transport properties of epitaxial terbium iron garnet (TbIG) ultrathin films deposited by magnetron sputtering. High crystallinity was achieved by growing the films on gadolinium gallium garnet (GGG) substrates either at high temperature, or a...

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Detalles Bibliográficos
Autores: Damerio, Silvia, Avci, Can Onur
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/331070
Acceso en línea:http://hdl.handle.net/10261/331070
http://arxiv.org/abs/2302.03758v1
Access Level:acceso abierto
Palabra clave:Thin-films
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spelling Sputtered terbium iron garnet films with perpendicular magnetic anisotropy for spintronic applicationsDamerio, SilviaAvci, Can OnurThin-filmsWe report the structural, magnetic, and interfacial spin transport properties of epitaxial terbium iron garnet (TbIG) ultrathin films deposited by magnetron sputtering. High crystallinity was achieved by growing the films on gadolinium gallium garnet (GGG) substrates either at high temperature, or at room temperature followed by thermal annealing, above 750 {\deg}C in both cases. The films display large perpendicular magnetic anisotropy (PMA) induced by compressive strain, and tunable structural and magnetic properties through growth conditions or the substrate lattice parameter choice. The ferrimagnetic compensation temperature (TM) of selected TbIG films was measured through temperature-dependent anomalous Hall effect (AHE) in Pt/TbIG heterostructures. In the studied films, TM was found to be between 190-225 K, i.e., approximately 25-60 K lower than the bulk value, which is attributed to the combined action of Tb deficiency and oxygen vacancies in the garnet lattice evidenced by x-ray photoelectron spectroscopy measurements. Sputtered TbIG ultrathin films with large PMA and highly tunable properties reported here can provide a suitable material platform for a wide range of spintronic experiments and device applications.We would like to thank Professor Josep Funtcuberta, Dr. Martín Testa Anta, and Stefano Fedel for the insightful discussions. The authors acknowledge funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (project MAGNEPIC, Grant Agreement No. 949052).With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000917-S).Peer reviewedAmerican Institute of PhysicsEuropean Research CouncilAgencia Estatal de Investigación (España)Damerio, Silvia [0000-0003-4460-9363]Avci, Can Onur [0000-0003-1226-2342]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/331070http://arxiv.org/abs/2302.03758v1reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/949052info:eu-repo/grantAgreement/AEI/Plan Estatal de investigación Científica y Técnica y de Innovación 2017-2020/CEX2019-000917-SJournal of Applied Physicshttp://doi.org/10.1063/5.0139602Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3310702026-05-22T06:33:51Z
dc.title.none.fl_str_mv Sputtered terbium iron garnet films with perpendicular magnetic anisotropy for spintronic applications
title Sputtered terbium iron garnet films with perpendicular magnetic anisotropy for spintronic applications
spellingShingle Sputtered terbium iron garnet films with perpendicular magnetic anisotropy for spintronic applications
Damerio, Silvia
Thin-films
title_short Sputtered terbium iron garnet films with perpendicular magnetic anisotropy for spintronic applications
title_full Sputtered terbium iron garnet films with perpendicular magnetic anisotropy for spintronic applications
title_fullStr Sputtered terbium iron garnet films with perpendicular magnetic anisotropy for spintronic applications
title_full_unstemmed Sputtered terbium iron garnet films with perpendicular magnetic anisotropy for spintronic applications
title_sort Sputtered terbium iron garnet films with perpendicular magnetic anisotropy for spintronic applications
dc.creator.none.fl_str_mv Damerio, Silvia
Avci, Can Onur
author Damerio, Silvia
author_facet Damerio, Silvia
Avci, Can Onur
author_role author
author2 Avci, Can Onur
author2_role author
dc.contributor.none.fl_str_mv European Research Council
Agencia Estatal de Investigación (España)
Damerio, Silvia [0000-0003-4460-9363]
Avci, Can Onur [0000-0003-1226-2342]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Thin-films
topic Thin-films
description We report the structural, magnetic, and interfacial spin transport properties of epitaxial terbium iron garnet (TbIG) ultrathin films deposited by magnetron sputtering. High crystallinity was achieved by growing the films on gadolinium gallium garnet (GGG) substrates either at high temperature, or at room temperature followed by thermal annealing, above 750 {\deg}C in both cases. The films display large perpendicular magnetic anisotropy (PMA) induced by compressive strain, and tunable structural and magnetic properties through growth conditions or the substrate lattice parameter choice. The ferrimagnetic compensation temperature (TM) of selected TbIG films was measured through temperature-dependent anomalous Hall effect (AHE) in Pt/TbIG heterostructures. In the studied films, TM was found to be between 190-225 K, i.e., approximately 25-60 K lower than the bulk value, which is attributed to the combined action of Tb deficiency and oxygen vacancies in the garnet lattice evidenced by x-ray photoelectron spectroscopy measurements. Sputtered TbIG ultrathin films with large PMA and highly tunable properties reported here can provide a suitable material platform for a wide range of spintronic experiments and device applications.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/331070
http://arxiv.org/abs/2302.03758v1
url http://hdl.handle.net/10261/331070
http://arxiv.org/abs/2302.03758v1
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/949052
info:eu-repo/grantAgreement/AEI/Plan Estatal de investigación Científica y Técnica y de Innovación 2017-2020/CEX2019-000917-S
Journal of Applied Physics
http://doi.org/10.1063/5.0139602
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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