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
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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