Skyrmions and Antiskyrmions in Quasi-Two-Dimensional Magnets

A stable skyrmion, representing the smallest realizable magnetic texture, could be an ideal element for ultra-dense magnetic memories. Here, we review recent progress in the field of skyrmionics, which is concerned with studies of tiny whirls of magnetic configurations for novel memory and logic app...

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Main Authors: Alexey A. Kovalev, Shane Sandhoefner
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-09-01
Series:Frontiers in Physics
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fphy.2018.00098/full
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author Alexey A. Kovalev
Shane Sandhoefner
author_facet Alexey A. Kovalev
Shane Sandhoefner
author_sort Alexey A. Kovalev
collection DOAJ
description A stable skyrmion, representing the smallest realizable magnetic texture, could be an ideal element for ultra-dense magnetic memories. Here, we review recent progress in the field of skyrmionics, which is concerned with studies of tiny whirls of magnetic configurations for novel memory and logic applications, with a particular emphasis on antiskyrmions. Magnetic antiskyrmions represent analogs of skyrmions with opposite topological charge. Just like skyrmions, antiskyrmions can be stabilized by the Dzyaloshinskii-Moriya interaction, as has been demonstrated in a recent experiment. Here, we emphasize differences between skyrmions and antiskyrmions, e.g., in the context of the topological Hall effect, skyrmion Hall effect, as well as nucleation and stability. Recent progress suggests that antiskyrmions can be potentially useful for many device applications. Antiskyrmions offer advantages over skyrmions as they can be driven without the Hall-like motion, offer increased stability due to dipolar interactions, and can be realized above room temperature.
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spelling doaj.art-e7c3600f607c4e60a6ad29499a7164552022-12-22T03:40:58ZengFrontiers Media S.A.Frontiers in Physics2296-424X2018-09-01610.3389/fphy.2018.00098403451Skyrmions and Antiskyrmions in Quasi-Two-Dimensional MagnetsAlexey A. KovalevShane SandhoefnerA stable skyrmion, representing the smallest realizable magnetic texture, could be an ideal element for ultra-dense magnetic memories. Here, we review recent progress in the field of skyrmionics, which is concerned with studies of tiny whirls of magnetic configurations for novel memory and logic applications, with a particular emphasis on antiskyrmions. Magnetic antiskyrmions represent analogs of skyrmions with opposite topological charge. Just like skyrmions, antiskyrmions can be stabilized by the Dzyaloshinskii-Moriya interaction, as has been demonstrated in a recent experiment. Here, we emphasize differences between skyrmions and antiskyrmions, e.g., in the context of the topological Hall effect, skyrmion Hall effect, as well as nucleation and stability. Recent progress suggests that antiskyrmions can be potentially useful for many device applications. Antiskyrmions offer advantages over skyrmions as they can be driven without the Hall-like motion, offer increased stability due to dipolar interactions, and can be realized above room temperature.https://www.frontiersin.org/article/10.3389/fphy.2018.00098/fullDzyaloshinskii Moriya interactionchiral spin texturesrace-track memorytopological transportmagnetic skyrmionantiskyrmion
spellingShingle Alexey A. Kovalev
Shane Sandhoefner
Skyrmions and Antiskyrmions in Quasi-Two-Dimensional Magnets
Frontiers in Physics
Dzyaloshinskii Moriya interaction
chiral spin textures
race-track memory
topological transport
magnetic skyrmion
antiskyrmion
title Skyrmions and Antiskyrmions in Quasi-Two-Dimensional Magnets
title_full Skyrmions and Antiskyrmions in Quasi-Two-Dimensional Magnets
title_fullStr Skyrmions and Antiskyrmions in Quasi-Two-Dimensional Magnets
title_full_unstemmed Skyrmions and Antiskyrmions in Quasi-Two-Dimensional Magnets
title_short Skyrmions and Antiskyrmions in Quasi-Two-Dimensional Magnets
title_sort skyrmions and antiskyrmions in quasi two dimensional magnets
topic Dzyaloshinskii Moriya interaction
chiral spin textures
race-track memory
topological transport
magnetic skyrmion
antiskyrmion
url https://www.frontiersin.org/article/10.3389/fphy.2018.00098/full
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