Room-temperature creation and manipulation of skyrmions in MgO/FeNiB/Mo multilayers  

作　　者：梁文会 苏鉴 王雨桐 张颖 胡凤霞 蔡建旺 Wen-Hui Liang;Jian Su;Yu-Tong Wang;Ying Zhang;Feng-Xia Hu;Jian-Wang Cai(Department of Physics,State Key Laboratory of Low-Dimensional Quantum Physics,Tsinghua University,Beijing 100084,China;Frontier Science Center for Quantum Information,Tsinghua University,Beijing 100084,China;Beijing National Laboratory for Condensed Matter Physics and State Key Laboratory of Magnetism,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China;Songshan Lake Materials Laboratory,Dongguan 523808,China)

机构地区：[1]Department of Physics,State Key Laboratory of Low-Dimensional Quantum Physics,Tsinghua University,Beijing 100084,China [2]Frontier Science Center for Quantum Information,Tsinghua University,Beijing 100084,China [3]Beijing National Laboratory for Condensed Matter Physics and State Key Laboratory of Magnetism,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [4]School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China [5]Songshan Lake Materials Laboratory,Dongguan 523808,China

出　　处：《Chinese Physics B》2023年第12期560-564,共5页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China (Grant No.2015CB921403);the National Key Research and Development Program of China (Grant No.2016YFA0300804);the National Natural Science Foundation of China (Grant Nos.51871236,11874408,51431009,92263202,and 51971240);the Science Center of the National Science Foundation of China (Grant No.52088101);the Strategic Priority Research Program (B,Grant No.XDB33030200)of the Chinese Academy of Sciences (CAS)。

摘　　要：Magnetic skyrmions in multilayer structures are considered as a new direction for the next generation of storage due to their small size,strong anti-interference ability,high current-driven mobility,and compatibility with existing spintronic technology.In this work,we present a tunable room temperature skyrmion platform based on multilayer stacks of MgO/FeNiB/Mo.We systematically studied the creation of magnetic skyrmions in MgO/FeNiB/Mo multilayer structures with perpendicular magnetic anisotropy(PMA).In these structures,the magnetic anisotropy changes from PMA to in-plane magnetic anisotropy(IMA)as the thickness of FeNiB layer increases.By adjusting the applied magnetic field and electric current,stable and high-density skyrmions can be obtained in the material system.The discovery of this material broadens the exploration of new materials for skyrmion and promotes the development of spintronic devices based on skyrmions.

关 键 词：magnetic skyrmion MgO/FeNiB/Mo multilayers electromagnetic coordinated manipulation Lorentz transmission electron microscopy(LTEM) 

分 类 号：O469[理学—凝聚态物理]