Omari, KA, Broomhall, TJ, Dawidek, RWS et al. (9 more authors) (2019) Toward Chirality‐Encoded Domain Wall Logic. Advanced Functional Materials, 29 (10). ARTN 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 the peer reviewed version of the following article: Omari, KA, Broomhall, TJ, Dawidek, RWS et al (2019) Toward Chirality‐Encoded Domain Wall Logic. Advanced Functional Materials, 29 (10). ARTN 1807282. ISSN 1616-301X. which has been published in final form at https://doi.org/10.1002/adfm.201807282. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | chirality; domain walls; magnetic logic; nanomagnetism; spintronics |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 15 Feb 2019 13:50 |
Last Modified: | 22 Jan 2020 01:39 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1002/adfm.201807282 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:142557 |