The type of the texture as well as its magnetochiral properties are determined by the intrinsic Dzyaloshinskii-Moriya interaction (DMI), which is a material property and can hardly be changed. Here we put forth
The magnetic interfacial Dzyaloshinskii–Moriya interaction (DMI) in multilayered thin films can lead to chiral spin states, which are of paramount importance for future spintronic technologies1,2. Interfacial DMI typically manifests as an intralayer int
综上所述,我们系统地证明了垂直合成反铁磁结构中的确定性无场磁化开关,其中Dzyaloshinskii-Moriya相互作用的定制强度在配置畴壁中起主要作用,提高了自旋轨道转矩效率。当畴壁能量有效场与DMI有效场相当时,畴壁呈现出介于Bloch型和Néel型之间的结构,易于被外界场控制。通过在楔形SOC层上沉积[Co/Pd]/Ru/[Co/Pd]/Ru...
近日,杨洪新研究员带领团队在二维磁体中各向异性DM相互作用与拓扑磁结构研究中取得重要进展,相关工作以“Anisotropic Dzyaloshinskii–Moriya Interaction and Topological Magnetism in Two-Dimensional Magnets Protected by P4̅m2 Crystal Symmetry”为题发表于Nano Letters 22, 2334 (2022)。 团队研究发现具有P4̅m2空...
该研究为调控DMI的强度乃至手性提供有效路径。相关研究成果以Reversible control of Dzyaloshinskii-Moriya interaction at the graphene/Co interface via hydrogen absorption为题,发表在Physical Review B101,104406(2020)。 研究工作得到国家自然科学基金、浙江省自然科学基金、中科院原始创新0-1项目、中国博士后科学基金、...
The origin of this effect lies in a Dzyaloshinskii-Moriya interaction (DMI) that arises at the interfaces of the ultrathin film, where inversion symmetry is broken. The mechanism we identify raises the prospect of magnonic devices in which domain-wall chirality plays the role of a spin-wave ...
4 & Hyunsoo Yang 1 Skyrmions in existing 2D van der Waals (vdW) materials have primarily been limited to cryogenic temperatures, and the underlying physical mechanism of the Dzyaloshinskii–Moriya interaction (DMI), a crucial ingredient for stabiliz- ing chiral skyrmions, remains inadequately ...
Introduction The Dzyaloshinskii–Moriya interaction (DMI) has attracted much attention because of its peculiar properties for realizing chiral spin structures in magnetic systems with broken inversion symmetry1–10. These chiral spin structures, such as chiral magnetic domain walls1 and magnetic skyrmions2...
The Dzyaloshinskii-Moriya interaction (DMI) has been recently recognized to play a crucial role in allowing fast domain wall dynamics driven by spin-orbit torques and the generation of magnetic Skyrmions. Here, we unveil the main features and microscopic mechanisms of DMI in Co/Pt bilayers via fi...
铁磁材料中的垂直磁各向异性(PMA)和Dzyaloshinskii-Moriya相互作用(DMI)是实现高效自旋电子器件的关键参量。增强铁磁材料PMA的传统方法有:构建具有大的自旋轨道耦合(SOC)强度的重金属(HM)-铁磁界面或者构建氧化物-铁磁金属界面。提升铁磁金属体系的DMI同样需要具有较大的SOC,兼需空间反演对称破缺的界面,因此,重金属Pt...