摘要
Chiral magnetic states are promising for future spintronic applications. Recent progress of chiral spin textures in two-dimensional magnets, such as chiral domain walls, skyrmions, and bimerons, have been drawing extensive attention. Here, via first-principles calculations, we show that biaxial strain can effectively manipulate the magnetic parameters of the Janus Mn Se Te monolayer. Interestingly, we find that both the magnitude and the sign of the magnetic constants of the Heisenberg exchange coupling, Dzyaloshinskii–Moriya interaction and magnetocrystalline anisotropy can be tuned by strain. Moreover, using micromagnetic simulations, we obtain the distinct phase diagram of chiral spin texture under different strains. Especially, we demonstrate that abundant chiral magnetic structures including ferromagnetic skyrmion, skyrmionium, bimeron, and antiferromagnetic spin spiral can be induced in the Mn Se Te monolayer. We also discuss the effect of temperature on these magnetic structures. The findings highlight the Janus Mn Se Te monolayer as a good candidate for spintronic nanodevices.
作者
王智文
梁敬华
杨洪新
Zhiwen Wang;Jinghua Liang;Hongxin Yang(National Laboratory of Solid State Microstructures,School of Physics,Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,China;Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China)
基金
supported by the National Key R&D Program of China(Grant No.2022YFA1405102)
the National Natural Science Foundation of China(Grant Nos.11874059 and 12174405)
the Key Research Program of Frontier Sciences,CAS(Grant No.ZDBS-LY-7021)
the Ningbo Key Scientific and Technological Project(Grant No.2021000215)
the“Pioneer”and“Leading Goose”R&D Program of Zhejiang Province(Grant No.2022C01053)
the Zhejiang Provincial Natural Science Foundation(Grant No.LR19A040002)
Beijing National Laboratory for Condensed Matter Physics(Grant No.2021000123)。
