Coherent ac spin current transmission across an antiferromagnetic CoO insulator
dc.contributor.author | Li, Q | |
dc.contributor.author | Yang, M | |
dc.contributor.author | Klewe, C | |
dc.contributor.author | Shafer, P | |
dc.contributor.author | N’Diaye, AT | |
dc.contributor.author | Hou, D | |
dc.contributor.author | Wang, TY | |
dc.contributor.author | Gao, N | |
dc.contributor.author | Saitoh, E | |
dc.contributor.author | Hwang, C | |
dc.contributor.author | Hicken, RJ | |
dc.contributor.author | Li, J | |
dc.contributor.author | Arenholz, E | |
dc.contributor.author | Qiu, ZQ | |
dc.date.accessioned | 2020-02-14T10:54:08Z | |
dc.date.issued | 2019-11-20 | |
dc.description.abstract | The recent discovery of spin current transmission through antiferromagnetic insulating materials opens up vast opportunities for fundamental physics and spintronics applications. The question currently surrounding this topic is: whether and how could THz antiferromagnetic magnons mediate a GHz spin current? This mismatch of frequencies becomes particularly critical for the case of coherent ac spin current, raising the fundamental question of whether a GHz ac spin current can ever keep its coherence inside an antiferromagnetic insulator and so drive the spin precession of another ferromagnet layer coherently? Utilizing element- and time-resolved x-ray pump-probe measurements on Py/Ag/CoO/Ag/Fe75Co25/MgO(001) heterostructures, here we demonstrate that a coherent GHz ac spin current pumped by the Py ferromagnetic resonance can transmit coherently across an antiferromagnetic CoO insulating layer to drive a coherent spin precession of the Fe75Co25 layer. Further measurement results favor thermal magnons rather than evanescent spin waves as the mediator of the coherent ac spin current in CoO. | en_GB |
dc.description.sponsorship | US Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division | en_GB |
dc.description.sponsorship | National Science Foundation (NSF) | en_GB |
dc.description.sponsorship | National Research Foundation of Korea | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.description.sponsorship | National Key Research and Development Program of CHINA | en_GB |
dc.identifier.citation | Vol. 10, article 5265 | en_GB |
dc.identifier.doi | 10.1038/s41467-019-13280-5 | |
dc.identifier.grantnumber | KCWF16 | en_GB |
dc.identifier.grantnumber | DMR-1504568 | en_GB |
dc.identifier.grantnumber | 2015M3D1A1070467 | en_GB |
dc.identifier.grantnumber | 2015R1A5A1009962 | en_GB |
dc.identifier.grantnumber | EP/J018767/1 | en_GB |
dc.identifier.grantnumber | EP/P02047X/1 | en_GB |
dc.identifier.grantnumber | 2016YFA0300804 | en_GB |
dc.identifier.grantnumber | 2017YFA0303303 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/40865 | |
dc.language.iso | en | en_GB |
dc.publisher | Nature Research | en_GB |
dc.rights | © The Author(s) 2019. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/ licenses/by/4.0/ | en_GB |
dc.title | Coherent ac spin current transmission across an antiferromagnetic CoO insulator | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2020-02-14T10:54:08Z | |
dc.description | This is the final version. Available on open access from Nature Research via the DOI in this record | en_GB |
dc.description | Data availability: Data are available from the corresponding author upon reasonable request. | en_GB |
dc.identifier.eissn | 2041-1723 | |
dc.identifier.journal | Nature Communications | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2019-10-24 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2019-11-20 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2020-02-14T10:49:38Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2020-02-14T10:54:12Z | |
refterms.panel | B | en_GB |
refterms.depositException | publishedGoldOA |
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