论文标题
稀土单核 - 抗铁磁铁家族托有磁性费米弧
Rare-earth monopnoctides -- family of antiferromagnets hosting magnetic Fermi arcs
论文作者
论文摘要
由于发现拓扑绝缘子的研究工作已经进行了许多研究工作，因此可以通过磁场来控制非平凡的自旋特性，最终导致许多基本现象和可能的应用。主要的重点是铁磁材料，可以托有韦尔仪，因此可以旋转质感的费米弧。抗铁磁铁（AFM）NDBI中Fermi Arcs和新的磁带的最新发现开辟了新的探索途径。在这里，我们表明，这些未知的效应不仅限于这种特定化合物，而是在CEBI，NDBI和NDSB中出现的，当它们经历了AFM转变时。我们的数据表明，NDSB中的Fermi弧具有2倍对称性，导致强烈的各向异性可以增强自旋纹理对传输性能的影响。因此，我们的发现表明，RBI和RSB系列是具有磁性费米弧的材料，并且可能是现代旋转的潜在平台。
Since the discovery of topological insulators a lot of research effort has been devoted to magnetic topological materials, in which non-trivial spin properties can be controlled by magnetic fields, culminating in a wealth of fundamental phenomena and possible applications. The main focus was on ferromagnetic materials that can host Weyl fermions and therefore spin textured Fermi arcs. The recent discovery of Fermi arcs and new magnetic bands splitting in antiferromagnet (AFM) NdBi has opened up new avenues for exploration. Here we show that these uncharted effects are not restricted to this specific compound, but rather emerge in CeBi, NdBi, and NdSb when they undergo paramagnetic to AFM transition. Our data show that the Fermi arcs in NdSb have 2-fold symmetry, leading to strong anisotropy that may enhance effects of spin textures on transport properties. Our findings thus demonstrate that the RBi and RSb series are materials that host magnetic Fermi arcs and may be a potential platform for modern spintronics.
