论文标题
在Helimagnet-Multilayer异质结构中创建手性浮子晶格
Creation of a Chiral Bobber Lattice in Helimagnet-Multilayer Heterostructures
论文作者
论文摘要
手性浮子是一种局部的三维磁化配置，终止于奇异性。手性浮子与手性磁铁中的磁性天空共存，将自己借给新型的Skyrmion融合信息。但是，浮子的按需创造以及他们的直接观察仍然难以捉摸。在这里，我们引入了一种新的机制，可以通过两个具有相当大小的天空物种的邻近性来创建稳定的手性浮子晶格状态。在Cu $ _2 $ oseo $ _3 $/[ta/cofeb/mgo] $ _ 4 $异质结构中，实验证明了这种效果，其中异国情调的浮子晶格状态出现在Cu $ _2 $ oseo $ _3 $的相位图中。为了明确揭示手性浮子晶格状态的存在，我们开发了一种新型的特征技术，磁截断杆分析，该技术基于谐振弹性X射线散射。
A chiral bobber is a localized three-dimensional magnetization configuration, terminated by a singularity. Chiral bobbers coexist with magnetic skyrmions in chiral magnets, lending themselves to new types of skyrmion-complementary bits of information. However, the on-demand creation of bobbers, as well as their direct observation remained elusive. Here, we introduce a new mechanism for creating a stable chiral bobber lattice state via the proximity of two skyrmion species with comparable size. This effect is experimentally demonstrated in a Cu$_2$OSeO$_3$/[Ta/CoFeB/MgO]$_4$ heterostructure in which an exotic bobber lattice state emerges in the phase diagram of Cu$_2$OSeO$_3$. To unambiguously reveal the existence of the chiral bobber lattice state, we have developed a novel characterization technique, magnetic truncation rod analysis, which is based on resonant elastic x-ray scattering.
