论文标题
在未封装的几层CRI3中观察非雷诺磁光散射
Observation of nonreciprocal magneto-optical scattering in nonencapsulated few-layered CrI3
论文作者
论文摘要
磁光效应是指偏振平面的旋转，该旋转已在传统的铁磁金属和绝缘膜中进行了广泛研究，几乎不在二维分层材料中。在这里，我们揭示了铁磁性几层CRI3中新的非磁性磁弹性光散射效应。我们观察到-20O和 +60o之间非弹性光散射的极化平面的旋转，而平面磁场可从-2.5到2.5 t进行调谐。在实验上可以观察到可以在-20％和85％之间磁性地操纵极化程度。这项工作提出了一种新的磁光学现象，可以创造机会在拉曼激光，拓扑光子学和磁光调节器中应用2D铁磁材料进行信息传输和存储。
Magneto-optical effect refers to a rotation of polarization plane, which has been widely studied in traditional ferromagnetic metal and insulator films and scarcely in two-dimensional layered materials. Here we uncover a new nonreciprocal magneto-inelastic light scattering effect in ferromagnetic few-layer CrI3. We observed a rotation of the polarization plane of inelastic light scattering between -20o and +60o that are tunable by an out-of-plane magnetic field from -2.5 to 2.5 T. It is experimentally observed that the degree of polarization can be magnetically manipulated between -20% and 85%. This work raises a new magneto-optical phenomenon and could create opportunities of applying 2D ferromagnetic materials in Raman lasing, topological photonics, and magneto-optical modulator for information transport and storage.
