The Magnus Hall effect (MHE) is a new type of linear-response Hall effect, recently proposed to appear in two-dimensional (2D) nonmagnetic systems at zero magnetic field in the ballistic limit. The MHE arises from a self-rotating Bloch electron moving under a gradient-electrostatic potential, analogous to the Magnus effect in the macrocosm. Unfortunately, the MHE is usually accompanied by a trivial transverse signal, which hinders its experimental observation. We systematically investigate the material realization and experimental measurement of the MHE, based on symmetry analysis and first-principles calculations. It is found that both the out-of-plane mirror and in-plane two-fold symmetries can neutralize the trivial transverse signal to generate clean MHE signals. We choose two representative 2D materials, monolayer MoS₂, and bilayer WTe₂, to study the quantitative dependency of MHE signals on the direction of the electric field. The results are qualitatively consistent with the symmetry analysis, and suggest that an observable MHE signal requires giant Berry curvatures. Our results provide detailed guidance for the future experimental exploration of MHE.

马格努斯霍尔效应 (MHE) 是一种新型的线性响应霍尔效应，最近提出出现在弹道极限为零磁场的二维 (2D) 非磁性系统中。MHE 源于一个自旋转的布洛赫电子在梯度静电势下移动，类似于宏观世界中的马格努斯效应。不幸的是，MHE 通常伴随着微不足道的横向信号，这阻碍了其实验观察。我们基于对称性分析和第一性原理计算，系统地研究了 MHE 的材料实现和实验测量。发现面外反射镜和面内双重对称性都可以中和微不足道的横向信号以产生干净的 MHE 信号。我们选择了两种具有代表性的二维材料，单层 MoS₂和双层WTe ₂，研究MHE信号对电场方向的定量依赖性。结果与对称性分析定性一致，并表明可观察到的 MHE 信号需要巨大的 Berry 曲率。我们的研究结果为未来 MHE 的实验探索提供了详细的指导。