Optimizing the Geometry of Chiral Magnetic Logic Devices

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We investigated how geometry affects chiral magnetic logic devices, using micro-magnetic simulation. The logical NOT gate in the device was operated by current-induced domain wall (DW) motion in perpendicularly magnetized nanowires with a locally modulated in-plane magnetic anisotropy (IMA) region, where the up-down DW is switched into a down-up DW by current. We modulated the width of the nanowires as well as the length of the IMA region and found that an optimized geometry exists which depends on the Dzyaloshinskii-Moriya Interaction. Integrating the optimized NOT-gate, we then demonstrated NAND or NOR logic operations. Our results provide design guidelines for the magnetic logic device, paving the way to functional magnetic logic-in-memory devices.
Publisher
KOREAN MAGNETICS SOC
Issue Date
2020-06
Language
English
Article Type
Article
Citation

JOURNAL OF MAGNETICS, v.25, no.2, pp.150 - 156

ISSN
1226-1750
DOI
10.4283/JMAG.2020.25.2.150
URI
http://hdl.handle.net/10203/275769
Appears in Collection
PH-Journal Papers(저널논문)
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