Interplay between spin proximity effect and charge-dependent exciton dynamics in MoSe2/CrBr3 van der Waals heterostructures
dc.contributor.author | Lyons, TP | |
dc.contributor.author | Gillard, D | |
dc.contributor.author | Molina-Sánchez, A | |
dc.contributor.author | Misra, A | |
dc.contributor.author | Withers, F | |
dc.contributor.author | Keatley, PS | |
dc.contributor.author | Kozikov, A | |
dc.contributor.author | Taniguchi, T | |
dc.contributor.author | Watanabe, K | |
dc.contributor.author | Novoselov, KS | |
dc.contributor.author | Fernández-Rossier, J | |
dc.contributor.author | Tartakovskii, AI | |
dc.date.accessioned | 2021-02-18T10:22:19Z | |
dc.date.issued | 2020-11-26 | |
dc.description.abstract | Semiconducting ferromagnet-nonmagnet interfaces in van der Waals heterostructures present a unique opportunity to investigate magnetic proximity interactions dependent upon a multitude of phenomena including valley and layer pseudospins, moiré periodicity, or exceptionally strong Coulomb binding. Here, we report a charge-state dependency of the magnetic proximity effects between MoSe2 and CrBr3 in photoluminescence, whereby the valley polarization of the MoSe2 trion state conforms closely to the local CrBr3 magnetization, while the neutral exciton state remains insensitive to the ferromagnet. We attribute this to spin-dependent interlayer charge transfer occurring on timescales between the exciton and trion radiative lifetimes. Going further, we uncover by both the magneto-optical Kerr effect and photoluminescence a domain-like spatial topography of contrasting valley polarization, which we infer to be labyrinthine or otherwise highly intricate, with features smaller than 400 nm corresponding to our optical resolution. Our findings offer a unique insight into the interplay between short-lived valley excitons and spin-dependent interlayer tunneling, while also highlighting MoSe2 as a promising candidate to optically interface with exotic spin textures in van der Waals structures. | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.description.sponsorship | European Graphene Flagship Projects | en_GB |
dc.description.sponsorship | EU Quantum Technology Flagship Programs | en_GB |
dc.description.sponsorship | European Research Council (ERC) | en_GB |
dc.description.sponsorship | Marie-CurieCOFUND program Nano TRAIN For Growth II | en_GB |
dc.description.sponsorship | Royal Society | en_GB |
dc.description.sponsorship | FCT | en_GB |
dc.description.sponsorship | Generalitat Valenciana | en_GB |
dc.description.sponsorship | MINECO-Spain | en_GB |
dc.identifier.citation | Vol. 11, article 6021 | en_GB |
dc.identifier.doi | 10.1038/s41467-020-19816-4 | |
dc.identifier.grantnumber | EP/R513313/1 | en_GB |
dc.identifier.grantnumber | EP/P026850/1 | en_GB |
dc.identifier.grantnumber | EP/S030751/1 | en_GB |
dc.identifier.grantnumber | 785219 | en_GB |
dc.identifier.grantnumber | 881603 | en_GB |
dc.identifier.grantnumber | EP/N010345/1 | en_GB |
dc.identifier.grantnumber | EP/S030719/1 | en_GB |
dc.identifier.grantnumber | 713640 | en_GB |
dc.identifier.grantnumber | UTAP-EXPL/NTec/0046/2017 | en_GB |
dc.identifier.grantnumber | 2017/139 | en_GB |
dc.identifier.grantnumber | MAT2016-78625-C2 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/124791 | |
dc.language.iso | en | en_GB |
dc.publisher | Nature Research | en_GB |
dc.rights | © The Author(s) 2020. 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 | Interplay between spin proximity effect and charge-dependent exciton dynamics in MoSe2/CrBr3 van der Waals heterostructures | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2021-02-18T10:22:19Z | |
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: Experimental data from this work is stored on University of Sheffield central file servers and is available on request by contacting the corresponding authors. | 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 | 2020-10-30 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2020-11-26 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2021-02-18T10:16:30Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2021-02-18T10:22:26Z | |
refterms.panel | B | en_GB |
refterms.depositException | publishedGoldOA |
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Except where otherwise noted, this item's licence is described as © The Author(s) 2020. 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/