论文标题
Spintronics的拓扑抗铁磁半学：分层方形系统EUZNSB $ _2 $的案例研究
Topological Antiferromagnetic Semimetal for Spintronics: A Case Study of a Layered Square Net System EuZnSb$_2$
论文作者
论文摘要
我们使用第一原理和有效的哈密顿方法来研究最近合成的分层抗磁性方形净拓扑拓扑半学EUZNSB $ _2 $ [1]的电子结构和磁性。本文的主要信息是，在旋转霍尔电导率之类的传输特性中，会放大磁顺序和\ neel载体方向产生的带状结构的小变化和\ neel载体方向的变化的影响。我们预测，\ neel载体在散装中非常弱引入的破碎对称性的效果在表面电子分散体中发音很弱，这表明表面探针可能更适合于测量它们。磁性与许多其他竞争阶段的共存使这种材料变得有趣，并且可能对量子旋转的应用有用。
We use the first principles and effective Hamiltonian methods to study the electronic structure and magnetic properties of a recently synthesized layered antiferromagnetic square net topological semimetal EuZnSb$_2$ [1]. The main message of the paper is that effects of small changes in the band structure produced by the magnetic ordering and changes in the orientation of the \Neel vector are amplified in such transport properties as the spin Hall conductivity. We predict that the effects of the broken symmetry introduced by the ordering of the \Neel vector, being very weak in the bulk, are pronounced in the surface electronic dispersion, suggesting that surface probes may be more suited to measure them. The coexistence of the magnetism with many other competing phases make this material interesting and possibly useful for quantum spintronics applications.
