论文标题
NDALSI：具有丰富磁相和非典型运输特性的磁性Weyl半候选者
NdAlSi: a magnetic Weyl semimetal candidate with rich magnetic phases and atypical transport properties
论文作者
论文摘要
磁性Weyl半法（MWSM）由于其在自旋电子设备中引人入胜的物理特性和潜在的应用而引起了极大的关注。在这里，我们报告了NDALSI的表征，包括单晶体上的运输，磁化和热容量以及带结构的计算。这是一个新提出的MWSM候选者，它会破坏时间反转和空间反转对称性。实验建立了温度 - 磁场磁场相图。值得注意的是，在角磁倍率（AMR）上，在田间诱导的铁磁相中观察到了两个倍的对称尖峰，而不是平滑的变化。我们认为，Ndalsi中拓扑和磁性的可调节性对于实现这种行为至关重要。我们的结果表明，基于4F-电子的MWSM可以提供一个独特的平台，以探索磁性与拓扑之间的相互作用引起的新的且有趣的量子现象。
Magnetic Weyl semimetals (MWSM) have attracted significant attention due to their intriguing physical properties and potential applications in spin-electronic devices. Here we report the characterization of NdAlSi including transport, magnetization, and heat capacity on single crystals, as well as band structure calculation. It is a newly proposed MWSM candidate which breaks both time-reversal and spacial inversion symmetries. A temperature-magnetic field phase diagram is experimentally established. Remarkably, on the angular magnetoresistance (AMR), a two-fold symmetric sharp peak instead of a smooth variation is observed in the field-induced ferrimagnetic phase. We argue that the tunability of both the topological and magnetic properties in NdAlSi is crucial for realizing such a behavior. Our results indicate that 4f-electron-based MWSM can provide a unique platform to explore new and intriguing quantum phenomena arising from the interaction between magnetism and topology.
