dc.contributor.author | Ilyakov, Igor | |
dc.contributor.author | Brataas, Arne | |
dc.contributor.author | de Oliveira, Thales V. A. G. | |
dc.contributor.author | Ponomaryov, Alexey | |
dc.contributor.author | Deinert, Jan-Christoph | |
dc.contributor.author | Hellwig, Olav | |
dc.contributor.author | Fassbender, Jurgen | |
dc.contributor.author | Lindner, Jürgen | |
dc.contributor.author | Salikhov, Ruslan | |
dc.contributor.author | Kovalev, Sergey | |
dc.date.accessioned | 2024-01-12T09:06:13Z | |
dc.date.available | 2024-01-12T09:06:13Z | |
dc.date.created | 2023-11-27T18:35:55Z | |
dc.date.issued | 2023 | |
dc.identifier.issn | 2041-1723 | |
dc.identifier.uri | https://hdl.handle.net/11250/3111258 | |
dc.description.abstract | Efficient 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.iso | eng | en_US |
dc.publisher | Springer Nature Ltd. | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Efficient ultrafast field-driven spin current generation for spintronic terahertz frequency conversion | en_US |
dc.title.alternative | Efficient ultrafast field-driven spin current generation for spintronic terahertz frequency conversion | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.volume | 14 | en_US |
dc.source.journal | Nature Communications | en_US |
dc.identifier.doi | 10.1038/s41467-023-42845-8 | |
dc.identifier.cristin | 2203303 | |
dc.relation.project | Norges forskningsråd: 262633 | en_US |
dc.source.articlenumber | 7010 | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |