稀土薄膜中的自旋霍尔效应

非磁金属中的自旋霍尔效应对自旋流和电流的转换有着重要意义，而自旋霍尔效应的产生与材料的自旋轨道耦合有着直接联系。本项目针对自旋轨道耦合强的稀土薄膜以及稀土掺杂金属薄膜，来实现对非磁层的设计，从而调控非磁层中的自旋霍尔角以及相邻铁磁层的磁动力学过程。同时，通过对铁磁/稀土界面的研究，得出磁性/稀土界面对自旋流层间传输效率的影响，从而获得调控自旋流层间传输效率的新途径。本项目开拓了稀土材料在自旋流相关自旋电子学器件中的应用，对开发新型高性能自旋流-电流转换材料有着重要的意义。

Spin Hall effect (SHE) in nonmagnetic metals (NM) is of great significance for its transition to electrical current. The origin of SHE is directly connected with the spin-orbit coupling (SOC) of the material. Here, rare earth (RE) metals with high SOC are used to adjust the SOC of NM layers, which affects the spin Hall angle of NM and the dynamics of adjacent ferromagnetic layers. In addition, the effect and controllability of the interface between the ferromagnetic layer and RE on spin transmission will also be investigated. Results of this study will develop the application of RE in spintronic devices, and are beneficial for the development of the novel nonmagnetic materials for the transmission of spin current to electrical current.