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Chirality dependence of nanoscale ferromagnetic NOT gates

Lewis, E. R., Petit, D., O'Brien, L., Zeng, H. T., Read, Daniel ORCID: and Cowburn, R. P. 2011. Chirality dependence of nanoscale ferromagnetic NOT gates. Journal of Applied Physics 109 (5) , 053904. 10.1063/1.3549599

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The behavior of a transverse domain wall (DW) interacting with a ferromagnetic NOT gate is studied with specific emphasis on the role of the DW chirality (sense of rotation of magnetization crossing the DW). We examine both the effect of the incoming DW chirality on the operation of the NOT gate and the effect of the gate on the DW chirality. We find that the chirality of the incoming DW does not affect the range of fields over which the NOT gate operates correctly. The effect of the NOT gate on the DW chirality depends on the chirality of the incoming DW: when the DW is incident on the NOT gate with the wide side of the DW on the inside of the V-shape formed by the gate, the chirality is conserved, but when the DW is incident on the gate with its wide side on the outside of the V-shape, the chirality may reverse.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Additional Information: 6 pages.
Publisher: American Institute of Physics
ISSN: 0021-8979
Last Modified: 18 Oct 2022 14:05

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