DC Field | Value | Language |
---|---|---|
dc.contributor.author | Nadvornik, Lukas | ko |
dc.contributor.author | Gueckstock, Oliver | ko |
dc.contributor.author | Braun, Lukas | ko |
dc.contributor.author | Niu, Chengwang | ko |
dc.contributor.author | Graefe, Joachim | ko |
dc.contributor.author | Richter, Gunther | ko |
dc.contributor.author | Schuetz, Gisela | ko |
dc.contributor.author | Takagi, Hidenori | ko |
dc.contributor.author | Zeer, Mahmoud | ko |
dc.contributor.author | Seifert, Tom S. | ko |
dc.contributor.author | Kubascik, Peter | ko |
dc.contributor.author | Pandeya, Avanindra K. | ko |
dc.contributor.author | Anane, Abdelmadjid | ko |
dc.contributor.author | Yang, Heejun | ko |
dc.contributor.author | Bedoya-Pinto, Amilcar | ko |
dc.contributor.author | Parkin, Stuart S. P. | ko |
dc.contributor.author | Wolf, Martin | ko |
dc.contributor.author | Mokrousov, Yuriy | ko |
dc.contributor.author | Nakamura, Hiroyuki | ko |
dc.contributor.author | Kampfrath, Tobias | ko |
dc.date.accessioned | 2023-01-12T01:00:59Z | - |
dc.date.available | 2023-01-12T01:00:59Z | - |
dc.date.created | 2022-10-24 | - |
dc.date.issued | 2022-12 | - |
dc.identifier.citation | ADVANCED MATERIALS INTERFACES, v.9, no.36 | - |
dc.identifier.issn | 2196-7350 | - |
dc.identifier.uri | http://hdl.handle.net/10203/304302 | - |
dc.description.abstract | Transition-metal dichalcogenides (TMDCs) are an aspiring class of materials with unique electronic and optical properties and potential applications in spin-based electronics. Here, terahertz emission spectroscopy is used to study spin-to-charge current conversion (S2C) in the TMDC NbSe2 in ultra-high-vacuum-grown F|NbSe2 thin-film stacks, where F is a layer of ferromagnetic Fe or Ni. Ultrafast laser excitation triggers an ultrafast spin current that is converted into an in-plane charge current and, thus, a measurable THz electromagnetic pulse. The THz signal amplitude as a function of the NbSe2 thickness shows that the measured signals are fully consistent with an ultrafast optically driven injection of an in-plane-polarized spin current into NbSe2. Modeling of the spin-current dynamics reveals that a sizable fraction of the total S2C originates from the bulk of NbSe2 with the opposite, negative sign of the spin Hall angle as compared to Pt. By a quantitative comparison of the emitted THz radiation from F|NbSe2 to F|Pt reference samples and the results of ab initio calculations, it is estimated that the spin Hall angle of NbSe2 for an in-plane polarized spin current lies between -0.2% and -1.1%, while the THz spin-current relaxation length is of the order of a few nanometers. | - |
dc.language | English | - |
dc.publisher | WILEY | - |
dc.title | Terahertz spin-to-charge current conversion in stacks of ferromagnets and the transition-metal dichalcogenide NbSe2 | - |
dc.type | Article | - |
dc.identifier.wosid | 000870537300001 | - |
dc.identifier.scopusid | 2-s2.0-85140103304 | - |
dc.type.rims | ART | - |
dc.citation.volume | 9 | - |
dc.citation.issue | 36 | - |
dc.citation.publicationname | ADVANCED MATERIALS INTERFACES | - |
dc.identifier.doi | 10.1002/admi.202201675 | - |
dc.contributor.localauthor | Yang, Heejun | - |
dc.contributor.nonIdAuthor | Nadvornik, Lukas | - |
dc.contributor.nonIdAuthor | Gueckstock, Oliver | - |
dc.contributor.nonIdAuthor | Braun, Lukas | - |
dc.contributor.nonIdAuthor | Niu, Chengwang | - |
dc.contributor.nonIdAuthor | Graefe, Joachim | - |
dc.contributor.nonIdAuthor | Richter, Gunther | - |
dc.contributor.nonIdAuthor | Schuetz, Gisela | - |
dc.contributor.nonIdAuthor | Takagi, Hidenori | - |
dc.contributor.nonIdAuthor | Zeer, Mahmoud | - |
dc.contributor.nonIdAuthor | Seifert, Tom S. | - |
dc.contributor.nonIdAuthor | Kubascik, Peter | - |
dc.contributor.nonIdAuthor | Pandeya, Avanindra K. | - |
dc.contributor.nonIdAuthor | Anane, Abdelmadjid | - |
dc.contributor.nonIdAuthor | Bedoya-Pinto, Amilcar | - |
dc.contributor.nonIdAuthor | Parkin, Stuart S. P. | - |
dc.contributor.nonIdAuthor | Wolf, Martin | - |
dc.contributor.nonIdAuthor | Mokrousov, Yuriy | - |
dc.contributor.nonIdAuthor | Nakamura, Hiroyuki | - |
dc.contributor.nonIdAuthor | Kampfrath, Tobias | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | spin Hall angles | - |
dc.subject.keywordAuthor | spin-to-charge-current conversion | - |
dc.subject.keywordAuthor | terahertz emission spectroscopy | - |
dc.subject.keywordAuthor | transition-metal dichalcogenides (TMDCs) | - |
dc.subject.keywordAuthor | ultrafast spin current injections | - |
dc.subject.keywordPlus | MOS2 | - |
dc.subject.keywordPlus | LAYER | - |
dc.subject.keywordPlus | POLARIZATION | - |
dc.subject.keywordPlus | COHERENCE | - |
dc.subject.keywordPlus | ELECTRONS | - |
dc.subject.keywordPlus | EMITTERS | - |
dc.subject.keywordPlus | PULSES | - |
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