典型文献
The 20-nm Skyrmion Generated at Room Temperature by Spin-Orbit Torques
文献摘要：
The discovery of magnetic skyrmions provides a promising pathway for developing functional spintronic memory and logic devices.Towards the future high-density memory application,nanoscale skyrmions with miniaturized diameters,ideally down to 20 nm are required.Using x-ray magnetic circular dichroism transmission microscopy,nanoscale skyrmions are observed in the[Pt/Co/Ir]15 multilayer at room temperature.In particular,small skyrmions with minimum diameters approaching 20 nm could be generated by the current-induced spin-orbit torques.Through implementing material specific parameters,the dynamic process of skyrmion generation is further investigated by performing micromagnetic simulations.According to the simulation results,we find that both the tube-like Néel-type skyrmions and the bobber-like Néel-type skyrmions can be electrically generated.In particular,the size of the bobber-like Néel-type skyrmions can be effectively reduced by the spin-orbit torques,which leads to the formation of 20 nm Néel-type skyrmions.Our findings could be important for understanding the formation dynamics of nanoscale Néel-type spin textures,skyrmions and bobber in particular,which could also be useful for promoting nanoscale skyrmionic memories and logic devices.
文献关键词：
中图分类号：
作者姓名：
Jiahao Liu;Zidong Wang;Teng Xu;Hengan Zhou;Le Zhao;Soong-Guen Je;Mi-Young Im;Liang Fang;Wanjun Jiang
作者机构：
State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics,Tsinghua University,Beijing 100084,China;Frontier Science Center for Quantum Information,Tsinghua University,Beijing 100084,China;Institute for Quantum Information & State Key Laboratory of High Performance Computing,College of Computer,National University of Defense Technology,Changsha 410073,China;Center for X-ray Optics,Lawrence Berkeley National Laboratory,Cyclotron Road,Berkeley,CA 94720,USA;Department of Physics,Chonnam National University,Gwangju,61186,Republic of Korea
文献出处：
引用格式：
[1]Jiahao Liu;Zidong Wang;Teng Xu;Hengan Zhou;Le Zhao;Soong-Guen Je;Mi-Young Im;Liang Fang;Wanjun Jiang-.The 20-nm Skyrmion Generated at Room Temperature by Spin-Orbit Torques)[J].中国物理快报（英文版）,2022(01):54-65
A类：
Torques,bobber
B类：
Skyrmion,Generated,Room,Temperature,by,Spin,Orbit,discovery,skyrmions,provides,promising,pathway,developing,functional,spintronic,memory,logic,devices,Towards,future,high,density,application,nanoscale,miniaturized,diameters,ideally,down,are,required,Using,ray,circular,dichroism,transmission,microscopy,observed,Pt,Co,Ir,multilayer,room,temperature,In,particular,small,minimum,approaching,could,generated,current,induced,orbit,torques,Through,implementing,material,specific,parameters,process,generation,further,investigated,performing,micromagnetic,simulations,According,results,we,that,both,tube,like,type,can,electrically,size,effectively,reduced,which,leads,formation,Our,findings,important,understanding,dynamics,textures,also,useful,promoting,skyrmionic,memories
AB值：
0.52089
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