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Deterministic Field-Free Skyrmion Nucleation at a Nanoengineered Injector Device

Magnetic skyrmions are topological solitons promising for applications as encoders for digital information. A number of different skyrmion-based memory devices have been recently proposed. In order to demonstrate a viable skyrmion-based memory device, it is necessary to reliably and reproducibly nuc...

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Published in:Nano letters 2019-10, Vol.19 (10), p.7246-7255
Main Authors: Finizio, Simone, Zeissler, Katharina, Wintz, Sebastian, Mayr, Sina, Weßels, Teresa, Huxtable, Alexandra J, Burnell, Gavin, Marrows, Christopher H, Raabe, Jörg
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cited_by cdi_FETCH-LOGICAL-a414t-798a8468801e501436fadc630e27af827e4e2599517adc0822b4ab3b8f6d54093
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container_end_page 7255
container_issue 10
container_start_page 7246
container_title Nano letters
container_volume 19
creator Finizio, Simone
Zeissler, Katharina
Wintz, Sebastian
Mayr, Sina
Weßels, Teresa
Huxtable, Alexandra J
Burnell, Gavin
Marrows, Christopher H
Raabe, Jörg
description Magnetic skyrmions are topological solitons promising for applications as encoders for digital information. A number of different skyrmion-based memory devices have been recently proposed. In order to demonstrate a viable skyrmion-based memory device, it is necessary to reliably and reproducibly nucleate, displace, detect, and delete the magnetic skyrmions, possibly in the absence of external applied magnetic fields, which would needlessly complicate the device design. While the skyrmion displacement and detection have both been thoroughly investigated, much less attention has been dedicated to the study of the skyrmion nucleation process and its sub-nanosecond dynamics. In this study, we investigate the nucleation of magnetic skyrmions from a dedicated nanoengineered injector, demonstrating the reliable magnetic skyrmion nucleation at the remnant state. The sub-nanosecond dynamics of the skyrmion nucleation process were also investigated, allowing us to shine light on the physical processes driving the nucleation.
doi_str_mv 10.1021/acs.nanolett.9b02840
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title Deterministic Field-Free Skyrmion Nucleation at a Nanoengineered Injector Device
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