论文标题
Helimagnet中的特殊跨领域墙
A special cross-tie domain wall in helimagnet
论文作者
论文摘要
通过Lorentz透射电子显微镜（LTEM）中的磁载体场层析成像（LTEM），在Helimagnet Mncosi合金中发现了特殊的跨系带（SCT）结构壁。与传统的跨系列（TCT）域壁不同，其中收敛/发散的磁矩配置一一将一致划分，在这个全新的SCT域壁上出现了相对大的Bloch型子壁，并在此特殊功能中同时出现了两个相互垂直的旋转轴。直磁条纹伴随着拆开的域壁提示复杂机制形成了这种SCT结构。有趣的是，LTEM中该域壁的不同方向可以轻松地表现出各种磁性特征，包括梅隆/安提米隆链或bimeron字符串。
A special cross-tie (SCT) domain wall was discovered in the helimagnet MnCoSi alloy via the magnetic vector field tomography in Lorentz transmission electron microscopy (LTEM). Different to the traditional cross-tie (TCT) domain wall where the convergent/divergent magnetic moment configuration line up one by one, the relative large Bloch type sub-walls emerge in this brand-new SCT domain wall and two mutually perpendicular rotation axes coexist in this special feature. The straight magnetic stripes accompanied with the unraveled domain walls hint the complex mechanism to form this SCT structure. Interestingly, different orientation of this domain wall in LTEM can easily exhibit various magnetic features, including meron/antimeron chains or bimeron strings.
