论文标题
铁磁金属中旋转依赖性散射引起的垂直极化的自旋大厅效应
Perpendicularly Polarized Spin Hall Effects Induced by Spin-Dependent Scattering in Ferromagnetic Metals
论文作者
论文摘要
铁磁体中的自旋电流具有多种功能。我们评估了铁磁金属中磁杂质散射的外在自旋大厅的影响。我们表明，自旋依赖性散射可以垂直于磁化方向提供高自旋电流极化，并且是中等导向性方案中的主要机制。我们发现自旋 - 旋转和自旋流通道的叠加会导致自旋电流。这些发现表明，优化合金成分是控制旋转厅效应的有效策略。
Spin currents in ferromagnets afford diverse functionalities. We evaluate the extrinsic spin Hall effects of magnetic impurity scattering in ferromagnetic metals. We show that spin-dependent scattering can provide a high spin current polarized perpendicularly to the magnetization direction and is a dominant mechanism in the moderate-conductivity regime. We find that the superposition of the spin-conserve and spin-flip channels causes the spin currents. These findings suggest that optimizing alloy composition is an effective strategy to control the spin Hall effect.
