{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"submitter":["Mishra K"],"funding":["Dutch Research Council (NWO)","Svenska Forskningsr?det Formas","H2020 Future and Emerging Technologies","Knut och Alice Wallenbergs Stiftelse","Swedish Foundation for International Cooperation in Research and Higher Education","European Cooperation in Science and Technology","Vetenskapsr?det"],"pubmed_abstract":["Magnetic memory combining plasmonics and magnetism is poised to dramatically increase the bit density and energy efficiency of light-assisted ultrafast magnetic storage, thanks to nanoplasmon-driven enhancement and confinement of light. Here we devise a new path for that, simultaneously enabling light-driven bit downscaling, reduction of the required energy for magnetic memory writing, and a subtle control over the degree of demagnetization in a magnetophotonic surface crystal. It features a regular array of truncated-nanocone-shaped Au-TbCo antennas showing both localized plasmon and surface lattice resonance modes. The ultrafast magnetization dynamics of the nanoantennas show a 3-fold resonant enhancement of the demagnetization efficiency. The degree of demagnetization is further tuned by activating surface lattice modes. This reveals a platform where ultrafast demagnetization is localized at the nanoscale and its extent can be controlled at will, rendering it multistate and potentially opening up so-far-unforeseen nanomagnetic neuromorphic-like systems operating at femtosecond time scales controlled by light."],"journal":["Nano letters"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9756331"],"repository":["biostudies-literature"],"pubmed_title":["Ultrafast Demagnetization Control in Magnetophotonic Surface Crystals."],"pmcid":["PMC9756331"],"funding_grant_id":["2015.0060","KO2016-6889","2019-03581","2017-04828","CA17123","2021-01390","737093"],"pubmed_authors":["Kapaklis V","Ciuciulkaite A","Kimel AV","Rowan-Robinson RM","Kirilyuk A","Davies CS","Dmitriev A","Mishra K"],"additional_accession":[]},"is_claimable":false,"name":"Ultrafast Demagnetization Control in Magnetophotonic Surface Crystals.","description":"Magnetic memory combining plasmonics and magnetism is poised to dramatically increase the bit density and energy efficiency of light-assisted ultrafast magnetic storage, thanks to nanoplasmon-driven enhancement and confinement of light. Here we devise a new path for that, simultaneously enabling light-driven bit downscaling, reduction of the required energy for magnetic memory writing, and a subtle control over the degree of demagnetization in a magnetophotonic surface crystal. It features a regular array of truncated-nanocone-shaped Au-TbCo antennas showing both localized plasmon and surface lattice resonance modes. The ultrafast magnetization dynamics of the nanoantennas show a 3-fold resonant enhancement of the demagnetization efficiency. The degree of demagnetization is further tuned by activating surface lattice modes. This reveals a platform where ultrafast demagnetization is localized at the nanoscale and its extent can be controlled at will, rendering it multistate and potentially opening up so-far-unforeseen nanomagnetic neuromorphic-like systems operating at femtosecond time scales controlled by light.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Nov","modification":"2025-04-04T08:55:45.922Z","creation":"2025-04-04T08:55:45.922Z"},"accession":"S-EPMC9756331","cross_references":{"pubmed":["36321690"],"doi":["10.1021/acs.nanolett.2c00769"]}}