Cited 10 time in webofscience Cited 10 time in scopus

Toward Chirality-Encoded Domain Wall Logic

Title
Toward Chirality-Encoded Domain Wall Logic
Authors
Omari, Khalid A.Broomhall, Thomas J.Dawidek, Richard W. S.Allwood, Dan A.Bradley, Ruth C.Wood, Jonathan M.Fry, Paul W.Rosamond, Mark C.Linfield, Edmund H.Im, Mi‐YoungFischer, Peter J.Hayward, Tom J.
Issue Date
2019-03
Citation
Advanced Functional Materials, 29(10)
Type
Article
Article Type
Article
Author Keywords
chiralitydomain wallsmagnetic logicnanomagnetismspintronics
Keywords
ChiralityComputation theoryComputer circuitsMagnetic domainsMagnetizationNanomagneticsNanowiresNetwork architectureSpintronicsSpintronicsTexturesComputational architectureDegree of fidelityEncoded informationFerromagnetic nanowireMagnetic logicMagnetization dynamicsNanomagnetic logicNanomagnetismsDomain walls
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. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
http://hdl.handle.net/20.500.11750/9674
DOI
10.1002/adfm.201807282
Publisher
Wiley-VCH Verlag
Files:
There are no files associated with this item.
Collection:
ETC1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE