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dc.contributor.authorIlyakov, Igor
dc.contributor.authorBrataas, Arne
dc.contributor.authorde Oliveira, Thales V. A. G.
dc.contributor.authorPonomaryov, Alexey
dc.contributor.authorDeinert, Jan-Christoph
dc.contributor.authorHellwig, Olav
dc.contributor.authorFassbender, Jurgen
dc.contributor.authorLindner, Jürgen
dc.contributor.authorSalikhov, Ruslan
dc.contributor.authorKovalev, Sergey
dc.date.accessioned2024-01-12T09:06:13Z
dc.date.available2024-01-12T09:06:13Z
dc.date.created2023-11-27T18:35:55Z
dc.date.issued2023
dc.identifier.issn2041-1723
dc.identifier.urihttps://hdl.handle.net/11250/3111258
dc.description.abstractEfficient generation and control of spin currents launched by terahertz (THz) radiation with subsequent ultrafast spin-to-charge conversion is the current challenge for the next generation of high-speed communication and data processing units. Here, we demonstrate that THz light can efficiently drive coherent angular momentum transfer in nanometer-thick ferromagnet/heavy-metal heterostructures. This process is non-resonant and does neither require external magnetic fields nor cryogenics. The efficiency of this process is more than one order of magnitude higher as compared to the recently observed THz-induced spin pumping in MnF2 antiferromagnet. The coherently driven spin currents originate from the ultrafast spin Seebeck effect, caused by a THz-induced temperature imbalance in electronic and magnonic temperatures and fast relaxation of the electron-phonon system. Owing to the fact that the electron-phonon relaxation time is comparable with the period of a THz wave, the induced spin current results in THz second harmonic generation and THz optical rectification, providing a spintronic basis for THz frequency mixing and rectifying components.en_US
dc.language.isoengen_US
dc.publisherSpringer Nature Ltd.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleEfficient ultrafast field-driven spin current generation for spintronic terahertz frequency conversionen_US
dc.title.alternativeEfficient ultrafast field-driven spin current generation for spintronic terahertz frequency conversionen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.volume14en_US
dc.source.journalNature Communicationsen_US
dc.identifier.doi10.1038/s41467-023-42845-8
dc.identifier.cristin2203303
dc.relation.projectNorges forskningsråd: 262633en_US
dc.source.articlenumber7010en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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