Magnetic bilayer-skyrmions without skyrmion Hall effect

Nature Communications
Xichao ZhangMotohiko Ezawa

Abstract

Magnetic skyrmions might be used as information carriers in future advanced memories, logic gates and computing devices. However, there exists an obstacle known as the skyrmion Hall effect (SkHE), that is, the skyrmion trajectories bend away from the driving current direction due to the Magnus force. Consequently, the skyrmions in constricted geometries may be destroyed by touching the sample edges. Here we theoretically propose that the SkHE can be suppressed in the antiferromagnetically exchange-coupled bilayer system, since the Magnus forces in the top and bottom layers are exactly cancelled. We show that such a pair of SkHE-free magnetic skyrmions can be nucleated and be driven by the current-induced torque. Our proposal provides a promising means to move magnetic skyrmions in a perfectly straight trajectory in ultra-dense devices with ultra-fast processing speed.

References

Aug 18, 2006·Nature·U K RösslerC Pfleiderer
Feb 14, 2009·Science·S MühlbauerP Böni
Feb 14, 2013·Nature Communications·Junichi IwasakiNaoto Nagaosa
Mar 6, 2013·Nature Nanotechnology·Albert FertJoão Sampaio
Aug 27, 2013·Physical Review Letters·Lingyao Kong, Jiadong Zang
Sep 10, 2013·Nature Nanotechnology·Junichi IwasakiNaoto Nagaosa
Dec 5, 2013·Nature Nanotechnology·Naoto Nagaosa, Yoshinori Tokura
Jul 6, 2014·Nano Letters·Junichi IwasakiNaoto Nagaosa
Aug 15, 2014·Nature Communications·Yan Zhou, Motohiko Ezawa
Oct 30, 2014·Scientific Reports·R TomaselloG Finocchio
Jan 7, 2015·Scientific Reports·Xichao ZhangF J Morvan
Mar 6, 2015·Nature Nanotechnology·Stuart Parkin, See-Hun Yang
Mar 25, 2015·Scientific Reports·Xichao ZhangYan Zhou
May 13, 2015·Nanotechnology·Xichao ZhangYan Zhou
May 16, 2015·Physical Review Letters·Niklas RommingRoland Wiesendanger
May 30, 2015·Scientific Reports·I PurnamaW S Lew
Jun 13, 2015·Science·Wanjun JiangAxel Hoffmann
Jun 19, 2015·Scientific Reports·Xichao ZhangWeisheng Zhao
Jan 15, 2016·Physical Review Letters·Hongxin YangMairbek Chshiev

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Citations

Jun 28, 2016·Nano Letters·Dong-Soo HanChun-Yeol You
Apr 22, 2016·Scientific Reports·Xichao ZhangMotohiko Ezawa
Feb 16, 2017·Scientific Reports·Wataru Koshibae, Naoto Nagaosa
Mar 21, 2018·Nanoscale·Xing ChenWeisheng Zhao
Feb 23, 2018·Advanced Materials·Xuepeng QiuHyunsoo Yang
Sep 19, 2018·Nature Nanotechnology·Lucas CarettaGeoffrey S D Beach
Jan 27, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Ji-Chong YangYu Shi
Jun 19, 2018·Nature Physics·R A DuineM D Stiles
Mar 15, 2018·Scientific Reports·Felix BüttnerGeoffrey S D Beach
Nov 16, 2019·Nature Communications·Takaaki DohiHideo Ohno
Jul 3, 2019·Scientific Reports·Arash Mousavi Cheghabouri, Mehmet C Onbasli
Aug 4, 2020·Advanced Materials·Jingyan ZhangShouguo Wang
Aug 23, 2019·Scientific Reports·Börge GöbelStuart S P Parkin
Aug 21, 2020·Advanced Materials·Shanquan ChenZuhuang Chen
Feb 8, 2020·Physical Review Letters·Laichuan ShenYan Zhou
Oct 27, 2018·Scientific Reports·A G KolesnikovOleg A Tretiakov
Sep 17, 2016·Journal of Physics. Condensed Matter : an Institute of Physics Journal·S A Owerre
May 30, 2019·Scientific Reports·Marijan BegHans Fangohr
Nov 17, 2020·Small·Zhi Shiuh LimAriando Ariando
Dec 17, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Sandip Bera, Sudhansu S Mandal
Dec 15, 2020·Nature Communications·Andrada-Oana MandruHans Josef Hug
Dec 29, 2020·Nanotechnology·S VojkovicV L Carvalho-Santos
Mar 13, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·David EilmsteinerArthur Ernst
May 13, 2021·Nature Communications·R BreartonT Hesjedal
Dec 23, 2017·Nano Letters·Guoqiang YuKang L Wang
Mar 16, 2018·Nano Letters·Miguel A MarioniHans J Hug
Aug 20, 2020·Nano Letters·Sebastián Alejandro Díaz SantiagoChristina Psaroudaki
Sep 11, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Min XuZhiyu Zhang

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Methods Mentioned

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