eprintid: 10120157 rev_number: 16 eprint_status: archive userid: 608 dir: disk0/10/12/01/57 datestamp: 2021-01-29 14:29:22 lastmod: 2021-12-16 07:10:23 status_changed: 2021-01-29 14:29:22 type: article metadata_visibility: show creators_name: Stenning, KD creators_name: Gartside, JC creators_name: Dion, T creators_name: Vanstone, A creators_name: Arroo, DM creators_name: Branford, WR title: Magnonic Bending, Phase Shifting and Interferometry in a 2D Reconfigurable Nanodisk Crystal ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F64 keywords: reconfigurable magnonic crystal, magnonics, nanomagnetism, metamaterials, artificial spin system, tunable coupling, microstate control note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. abstract: Strongly interacting nanomagnetic systems are pivotal across next-generation technologies including reconfigurable magnonics and neuromorphic computation. Controlling magnetization states and local coupling between neighboring nanoelements allows vast reconfigurability and a host of associated functionalities. However, existing designs typically suffer from an inability to tailor interelement coupling post-fabrication and nanoelements restricted to a pair of Ising-like magnetization states. Here, we propose a class of reconfigurable magnonic crystals incorporating nanodisks as the functional element. Ferromagnetic nanodisks are crucially bistable in macrospin and vortex states, allowing interelement coupling to be selectively activated (macrospin) or deactivated (vortex). Through microstate engineering, we leverage the distinct coupling behaviors and magnonic band structures of bistable nanodisks to achieve reprogrammable magnonic waveguiding, bending, gating, and phase-shifting across a 2D network. The potential of nanodisk-based magnonics for wave-based computation is demonstrated via an all-magnon interferometer exhibiting XNOR logic functionality. Local microstate control is achieved here via topological magnetic writing using a magnetic force microscope tip. date: 2021-01-26 date_type: published official_url: https://doi.org/10.1021/acsnano.0c06894 oa_status: green full_text_type: other language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 1810338 doi: 10.1021/acsnano.0c06894 lyricists_name: Arroo, Daan lyricists_id: DARRO40 actors_name: Arroo, Daan actors_id: DARRO40 actors_role: owner full_text_status: public publication: ACS Nano volume: 15 number: 1 pagerange: 674-685 citation: Stenning, KD; Gartside, JC; Dion, T; Vanstone, A; Arroo, DM; Branford, WR; (2021) Magnonic Bending, Phase Shifting and Interferometry in a 2D Reconfigurable Nanodisk Crystal. ACS Nano , 15 (1) pp. 674-685. 10.1021/acsnano.0c06894 <https://doi.org/10.1021/acsnano.0c06894>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10120157/1/NanodiskWriting.pdf