论文标题
铁磁性纳米磁体中的旋转大厅效应。对磁场,电流和电流极性的依赖性
Inverse Spin Hall effect in ferromagnetic nanomagnet. Dependencies on magnetic field, current and current polarity
论文作者
论文摘要
铁磁性纳米磁体中测得的霍尔角显示出对外部磁场的实质性非线性依赖性,这无法通过普通和异常(AHE)霍尔的采用机制来解释,这意味着线性加上恒定的依赖于外部磁场。我们建议,反旋转霍尔效应(ISHE)还有其他非线性贡献。 ISHE在铁磁铁中的重要贡献得到了与ISHE现象学理论的完美一致性的支持。我们观察到AHE的不同依赖性和ISHE对电流的表明其热依赖性不同。我们还观察到由于旋转厅效应引起的电流极性的霍尔角度的依赖性。
The measured Hall angle in a ferromagnetic nanomagnet shows a substantial non-linear dependence on an external magnetic field, which cannot be explained by adopted mechanisms of the Ordinary and Anomalous (AHE) Hall effects implying a linear plus constant dependence on the external magnetic field. We suggest that there is an additional non-linear contribution from the Inverse Spin Hall effect (ISHE). The significant contribution of ISHE in a ferromagnet is supported by perfect agreement of experiment with a phenomenological theory of ISHE. We observed different dependencies of AHE and ISHE on current suggesting their different thermal dependencies. We also observe dependence of the Hall angle of the current polarity which is due to the Spin Hall effect.