eprintid: 10130117 rev_number: 15 eprint_status: archive userid: 608 dir: disk0/10/13/01/17 datestamp: 2021-06-24 15:32:19 lastmod: 2021-10-04 00:17:36 status_changed: 2021-06-24 15:32:19 type: article metadata_visibility: show creators_name: Gartside, JC creators_name: Vanstone, A creators_name: Dion, T creators_name: Stenning, KD creators_name: Arroo, DM creators_name: Kurebayashi, H creators_name: Branford, WR title: Reconfigurable magnonic mode-hybridisation and spectral control in a bicomponent artificial spin ice ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F64 keywords: Science & Technology, Multidisciplinary Sciences, Science & Technology - Other Topics, MAGNETIC MONOPOLES note: 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/. abstract: Strongly-interacting nanomagnetic arrays are finding increasing use as model host systems for reconfigurable magnonics. The strong inter-element coupling allows for stark spectral differences across a broad microstate space due to shifts in the dipolar field landscape. While these systems have yielded impressive initial results, developing rapid, scaleable means to access a broad range of spectrally-distinct microstates is an open research problem. We present a scheme whereby square artificial spin ice is modified by widening a ‘staircase’ subset of bars relative to the rest of the array, allowing preparation of any ordered vertex state via simple global-field protocols. Available microstates range from the system ground-state to high-energy ‘monopole’ states, with rich and distinct microstate-specific magnon spectra observed. Microstate-dependent mode-hybridisation and anticrossings are observed at both remanence and in-field with dynamic coupling strength tunable via microstate-selection. Experimental coupling strengths are found up to g/2π = 0.16 GHz. Microstate control allows fine mode-frequency shifting, gap creation and closing, and active mode number selection. date: 2021-05-03 date_type: published publisher: NATURE RESEARCH official_url: https://doi.org/10.1038/s41467-021-22723-x oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 1844790 doi: 10.1038/s41467-021-22723-x lyricists_name: Arroo, Daan lyricists_name: Kurebayashi, Hidekazu lyricists_id: DARRO40 lyricists_id: HKURE44 actors_name: Flynn, Bernadette actors_id: BFFLY94 actors_role: owner full_text_status: public publication: Nature Communications volume: 12 number: 1 article_number: 2488 pages: 9 citation: Gartside, JC; Vanstone, A; Dion, T; Stenning, KD; Arroo, DM; Kurebayashi, H; Branford, WR; (2021) Reconfigurable magnonic mode-hybridisation and spectral control in a bicomponent artificial spin ice. Nature Communications , 12 (1) , Article 2488. 10.1038/s41467-021-22723-x <https://doi.org/10.1038/s41467-021-22723-x>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10130117/1/s41467-021-22723-x.pdf