空中骑兵
自旋电子学
杰纳斯
凝聚态物理
磁性
点反射
物理
联轴节(管道)
磁场
铁磁性
纳米技术
材料科学
量子力学
冶金
作者
Yonglong Ga,Dongxing Yu,Liming Wang,Peng Li,Jun Liang,Haolin Yang
出处
期刊:2D materials
[IOP Publishing]
日期:2023-05-31
卷期号:10 (3): 035020-035020
被引量:2
标识
DOI:10.1088/2053-1583/acd2e9
摘要
Abstract Magnetic skyrmions, as topologically protected whirl-like solitons, have been the subject of growing interest in non-volatile spintronic memories and logic devices. Recently, much effort has been devoted to searching for skyrmion host materials in two-dimensional (2D) systems, where intrinsic inversion symmetry breaking and a large Dzyaloshinskii–Moriya interaction (DMI) are desirable to realize a field-free skyrmion state. Among these systems, 2D magnetic Janus materials have become important candidates for inducing a sizable DMI and chiral spin textures. Herein, we demonstrate that layer-dependent DMI and field-free magnetic skyrmions can exist in multilayer MnSTe. Moreover, strong interlayer exchange coupling and Bethe–Slater curve-like behaviors arising from the Mn–Mn double exchange mechanism are found in bilayer MnSTe. We also uncover that the distribution of DMIs in multilayer MnSTe can be understood as making a significant contribution to the intermediate DMI using the three-site Fert–Lévy model. Our results unveil great potential for designing skyrmion-based spintronic devices in multilayer 2D materials.
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