论文标题
杂词莫伊尔磁铁：MoiréSkyrmions和相对应量的过渡
Heterobilayer moiré magnets: moiré skyrmions and the commensurate-incommensurate transition
论文作者
论文摘要
我们研究了铁磁和抗铁磁范德华材料的无近杂质材料，特别是在铁磁层中具有dzyaloshinskii-moriya的相互作用。连续的低能场理论用于研究此类系统。我们开发了一个相图，这是使用Landau-lifshitz-gilbert方程的数值模拟，将层间交换和dzyaloshinskii-Moriya相互作用的强度函数。发现了各种Moiré-周期性相称的阶段，并讨论了相称的均质过渡。在相称的阶段中，我们观察到一个有趣的天际晶格阶段，每个Moiré单位单元都有一个天空。
We study untwisted heterobilayers of ferromagnetic and antiferromagnetic van der Waals materials, with in particular a Dzyaloshinskii-Moriya interaction in the ferromagnetic layer. A continuum low energy field theory is utilized to study such systems. We develop a phase diagram as a function of the strength of inter-layer exchange and Dzyaloshinskii-Moriya interactions, combining perturbative and strong coupling analyses with numerical simulations using Landau-Lifshitz-Gilbert equations. Various moiré-periodic commensurate phases are found, and the commensurate-incommensurate transition is discussed. Among the commensurate phases, we observe an interesting skyrmion lattice phase wherein each moiré unit cell hosts one skyrmion.
