Ferromagnet (FM)℃heavy-metal (HM) nanostructures can be used for magnetic state readout in the proposed magnetoelectric spin-orbit logic by locally injecting a spin-polarized current and measuring the spin-to-charge conversion via the spin Hall effect. However, this local configuration is prone to spurious signals. Here, we address spurious Hall effects that can contaminate the spin Hall signal in these FM/HM T-shaped nanostructures. The most pronounced Hall effects in our ${\mathrm{Co}}_{50}{\mathrm{Fe}}_{50}/\mathrm{Pt}$ nanostructures are the planar Hall effect and the anomalous Hall effect generated in the ferromagnetic nanowire. We find that the planar Hall effect, induced by misalignment between magnetization and current direction in the ferromagnetic wire, is manifested as a shift in the measured baseline resistance, but does not alter the spin Hall signal. In contrast, the anomalous Hall effect, arising from the charge-current distribution within the FM, adds to the spin Hall signal. However, the effect can be made insignificant by minimizing the shunting effect via proper design of the device. We conclude that local spin injection in FM/HM nanostructures is a suitable tool for measuring spin Hall signals and, therefore, a valid method for magnetic state readout in prospective spin-based logic.

中文翻译：

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消除铁磁体-重金属纳米结构中的自旋，异常和平面霍尔效应

通过局部注入自旋极化电流并通过自旋霍尔效应测量自旋电荷转换，可将铁磁（FM）℃重金属（HM）纳米结构用于拟议的磁电自旋轨道逻辑中的磁态读出。但是，这种本地配置易于产生虚假信号。在这里，我们解决了寄生霍尔效应，它们会污染这些FM / HM T形纳米结构中的自旋霍尔信号。在我们最明显的霍尔效应${\mathrm{有限公司}}_{50}{铁}_{50}/铂$纳米结构是在铁磁纳米线上产生的平面霍尔效应和异常霍尔效应。我们发现，由铁磁线中的磁化强度和电流方向之间的未对准引起的平面霍尔效应表现为所测基线电阻的偏移，但并未改变自旋霍尔信号。相反，由FM内的充电电流分布引起的异常霍尔效应会增加自旋霍尔信号。然而，通过装置的适当设计，通过使分流效应最小化，可以使该效应微不足道。我们得出的结论是，在FM / HM纳米结构中进行局部自旋注入是一种用于测量自旋霍尔信号的合适工具，因此，这是一种在基于自旋的逻辑中读取磁态的有效方法。