Omari, K.A., Broomhall, T.J. orcid.org/0000-0002-7528-0831, Dawidek, R.W.S. et al. (9 more authors) (2019) Toward chirality-encoded domain wall logic. Advanced Functional Materials, 29 (10). 1807282. ISSN 1616-301X
Abstract
Nonvolatile logic networks based on spintronic and nanomagnetic technologies have the potential to create high-speed, ultralow power computational architectures. This article explores the feasibility of “chirality-encoded domain wall logic,” a nanomagnetic logic architecture where data are encoded by the chiral structures of mobile domain walls in networks of ferromagnetic nanowires and processed by the chiral structures' interactions with geometric features of the networks. High-resolution magnetic imaging is used to test two critical functionalities: the inversion of domain wall chirality at tailored artificial defect sites (logical NOT gates) and the chirality-selective output of domain walls from 2-in-1-out nanowire junctions (common operation to AND/NAND/OR/NOR gates). The measurements demonstrate both operations can be performed to a good degree of fidelity even in the presence of complex magnetization dynamics that would normally be expected to destroy chirality-encoded information. Together, these results represent a strong indication of the feasibility of devices where chiral magnetization textures are used to directly carry, rather than merely delineate, data.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This is an author produced version of a paper subsequently published in Advanced Functional Materials. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL (EPSRC) EP/J002275/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 05 Feb 2019 11:40 |
Last Modified: | 17 Nov 2021 10:05 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1002/adfm.201807282 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:142121 |