论文标题
异常效应的高通量研究
High-throughput study of the anomalous Hall effect
论文作者
论文摘要
尽管很长一段时间以来，由于其复杂的起源，与拓扑的联系，并且由于它是磁性秩序的有用探针，但由于其复杂的起源，它仍然引起注意。在这里，我们使用自动高通量计算方案研究了异常的大厅效应。我们计算2871种铁磁材料中的固有异常霍尔效应。我们使用这些结果来研究异常效应的一般特性，例如其对自旋轨道耦合或磁化强度的依赖性。我们还检查了最大效果的材料中异常霍尔效应的起源，并表明大型霍尔效应的起源通常与非偏见的电子结构中的对称性受保护的带退化相关，通常镜像对称对称性受保护的节点。此外，我们研究了异常霍尔效应对磁化方向的依赖性，表明在许多材料中，它与通常的表达式$ \ Mathbf {J}^\ text {AHE} \ sim \ sim \ Mathbf {M Mathbf {M} \ times \ times \ times \ mathbf {e} $有显着差异。
Despite being known for a long time the anomalous Hall effect still attracts attention because of its complex origins, its connection to topology and because it serves as a useful probe of the magnetic order. Here we study the anomalous Hall effect using automatic high-throughput calculation scheme. We calculate the intrinsic anomalous Hall effect in 2871 ferromagnetic materials. We use these results to study general properties of the anomalous Hall effect such as its dependence on the strength of the spin-orbit coupling or magnetization. We also examine the origin of the anomalous Hall effect in the materials with the largest effect and show that the origin of the large anomalous Hall effect is usually associated with symmetry protected band degeneracies in the non-relativistic electronic structure, typically mirror symmetry protected nodal lines. Additionally, we study the dependence of the anomalous Hall effect on the magnetization direction, showing that in many materials it differs significantly from the commonly assumed expression $\mathbf{j}^\text{AHE} \sim \mathbf{M} \times \mathbf{E}$.
