Giant spin-charge conversion in ultrathin films of the MnPtSb half-Heusler compound

main text: 17 pages (with 4 figures), plus additional 8 pages of Supplementary Information

Detalles Bibliográficos
Autores: Longo, Emanuele, Markou, Anastasios, Felser, Claudia, Belli, Matteo, Serafini, Andrea, Targa, Paolo, Codegoni, D., Fanciulli, Marco, Mantovan, Roberto
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/371703
Acceso en línea:http://hdl.handle.net/10261/371703
http://arxiv.org/abs/2307.14516v1
Access Level:acceso abierto
Palabra clave:Ferromagnetic resonance
Half-Heusler compound
Spin pumping
Spin-charge conversion
Spintronics
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spelling Giant spin-charge conversion in ultrathin films of the MnPtSb half-Heusler compoundLongo, EmanueleMarkou, AnastasiosFelser, ClaudiaBelli, MatteoSerafini, AndreaTarga, PaoloCodegoni, D.Fanciulli, MarcoMantovan, RobertoFerromagnetic resonanceHalf-Heusler compoundSpin pumpingSpin-charge conversionSpintronicsmain text: 17 pages (with 4 figures), plus additional 8 pages of Supplementary InformationHalf-metallic half-Heusler compounds with strong spin-orbit-coupling and broken inversion symmetry in their crystal structure are promising materials for generating and absorbing spin-currents, thus enabling the electric manipulation of magnetization in energy-efficient spintronic devices. In this work, we report the spin-to-charge conversion in sputtered ultrathin films of the half-Heusler compound MnPtSb with thickness (t) in the range from 1 to 6 nm. A combination of X-ray and transmission electron microscopy measurements evidence the epitaxial nature of these ultrathin non-centrosymmetric MnPtSb films, with a clear (111)-orientation obtained on top of (0001) single-crystal sapphire substrates. The study of the thickness (t)-dependent magnetization dynamics of the MnPtSb(t)/Co(5nm)/Au(5nm) heterostructure revealed that the MnPtSb compound can be used as an efficient spin current generator, even at film thicknesses as low as 1 nm. By making use of spin pumping FMR, we measure a remarkable t-dependent spin-charge conversion in the MnPtSb layers, which clearly demonstrate the interfacial origin of the conversion. When interpreted as arising from the inverse Edelstein effect (IEE), the spin-charge conversion efficiency extracted at room temperature for the thinnest MnPtSb layer reaches {\lambda}IEE~3 nm, representing an extremely high spin-charge conversion efficiency at room temperature. The still never explored ultrathin regime of the MnPtSb films studied in this work and the discover of their outstanding functionality are two ingredients which demonstrate the potentiality of such materials for future applications in spintronics.The authors thank Edouard Lesne for discussions. The authors acknowledge the Horizon 2020 project SKYTOP “Skyrmion-Topological Insulator and Weyl Semimetal Technology” (FETPROACT-2018-01, n. 824123). E.L., A.M., and R.M. conceived the experiment. E.L. conducted all the BFMR, SP-FMR, and XRD measurements. E.L. and M.B. developed the BFMR and SP-FMR set-up and performed the analysis of the FMR-based results. M.F. supervised the FMR activity at the University of Milano-Bicocca laboratory. A.M. produced the samples and performed magnetometry measurements. A.S., P.T., and D.C. performed and analyzed the TEM measurements. C.F. coordinated the samples growth activity at the Max Planck Institute. R.M. coordinated the research activity. E. L. wrote the manuscript. All authors discussed and reviewed the manuscript and the Supporting Information. [Correction added on June 28, 2024, after first online publication: Affiliations has been updated.]With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2023-001263-S).Peer reviewedWiley-VCHEuropean CommissionUniversità degli Studi di MilanoMax Planck SocietyAgencia Estatal de Investigación (España)Longo, Emanuele [0000-0001-8538-571X]Mantovan, Roberto [0000-0002-9353-4137]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/371703http://arxiv.org/abs/2307.14516v1reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de investigación Científica y Técnica y de Innovación 2021-2023/CEX2023-001263-SAdv. Funct. Mater. 2024, 2407968http://doi.org/10.1002/adfm.202407968Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3717032026-05-22T06:33:51Z
dc.title.none.fl_str_mv Giant spin-charge conversion in ultrathin films of the MnPtSb half-Heusler compound
title Giant spin-charge conversion in ultrathin films of the MnPtSb half-Heusler compound
spellingShingle Giant spin-charge conversion in ultrathin films of the MnPtSb half-Heusler compound
Longo, Emanuele
Ferromagnetic resonance
Half-Heusler compound
Spin pumping
Spin-charge conversion
Spintronics
title_short Giant spin-charge conversion in ultrathin films of the MnPtSb half-Heusler compound
title_full Giant spin-charge conversion in ultrathin films of the MnPtSb half-Heusler compound
title_fullStr Giant spin-charge conversion in ultrathin films of the MnPtSb half-Heusler compound
title_full_unstemmed Giant spin-charge conversion in ultrathin films of the MnPtSb half-Heusler compound
title_sort Giant spin-charge conversion in ultrathin films of the MnPtSb half-Heusler compound
dc.creator.none.fl_str_mv Longo, Emanuele
Markou, Anastasios
Felser, Claudia
Belli, Matteo
Serafini, Andrea
Targa, Paolo
Codegoni, D.
Fanciulli, Marco
Mantovan, Roberto
author Longo, Emanuele
author_facet Longo, Emanuele
Markou, Anastasios
Felser, Claudia
Belli, Matteo
Serafini, Andrea
Targa, Paolo
Codegoni, D.
Fanciulli, Marco
Mantovan, Roberto
author_role author
author2 Markou, Anastasios
Felser, Claudia
Belli, Matteo
Serafini, Andrea
Targa, Paolo
Codegoni, D.
Fanciulli, Marco
Mantovan, Roberto
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Università degli Studi di Milano
Max Planck Society
Agencia Estatal de Investigación (España)
Longo, Emanuele [0000-0001-8538-571X]
Mantovan, Roberto [0000-0002-9353-4137]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Ferromagnetic resonance
Half-Heusler compound
Spin pumping
Spin-charge conversion
Spintronics
topic Ferromagnetic resonance
Half-Heusler compound
Spin pumping
Spin-charge conversion
Spintronics
description main text: 17 pages (with 4 figures), plus additional 8 pages of Supplementary Information
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/371703
http://arxiv.org/abs/2307.14516v1
url http://hdl.handle.net/10261/371703
http://arxiv.org/abs/2307.14516v1
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de investigación Científica y Técnica y de Innovación 2021-2023/CEX2023-001263-S
Adv. Funct. Mater. 2024, 2407968
http://doi.org/10.1002/adfm.202407968
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Wiley-VCH
publisher.none.fl_str_mv Wiley-VCH
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
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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