Skyrmions-based logic gates in one single nanotrack completely reconstructed via chirality barrier.
DMI chirality barrier
reconstruction of single device
single-nanotrack logic gates
skyrmion
spintronics
Journal
National science review
ISSN: 2053-714X
Titre abrégé: Natl Sci Rev
Pays: China
ID NLM: 101633095
Informations de publication
Date de publication:
Dec 2022
Dec 2022
Historique:
received:
01
07
2021
revised:
06
01
2022
accepted:
07
01
2022
entrez:
30
1
2023
pubmed:
31
1
2023
medline:
31
1
2023
Statut:
epublish
Résumé
Logic gates based on magnetic elements are promising candidates for logic-in-memory applications with non-volatile data retention, near-zero leakage and scalability. In such spin-based logic devices, however, the multi-strip structure and fewer functions are obstacles to improving integration and reducing energy consumption. Here we propose a skyrmions-based single-nanotrack logic family including AND, OR, NOT, NAND, NOR, XOR and XNOR that can be implemented and reconstructed by building and switching the Dzyaloshinskii-Moriya interaction (DMI) chirality barrier on a racetrack memory. Besides the pinning effect of the DMI chirality barrier on skyrmions, the annihilation, fusion and shunting of two skyrmions with opposite chirality are also achieved and demonstrated via local reversal of the DMI, which are necessary for the design of an engineer programmable logic nanotrack, transistor and complementary racetrack memory.
Identifiants
pubmed: 36713589
doi: 10.1093/nsr/nwac021
pii: nwac021
pmc: PMC9874028
doi:
Types de publication
Journal Article
Langues
eng
Pagination
nwac021Informations de copyright
© The Author(s) 2022. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd.
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