The progress of spin rectification effect, which has the potential in powering the nanoscopic devices wirelessly, has been impeded by its low conversion efficiency. To solve this problem, a 5.8 GHz planar inverted F‐shaped antenna, which is designed to harvest radiated microwave power as well as foster a field enhanced area surrounding a permalloy (Py, Ni₈₀Fe₂₀) monolayer, is presented. The electric and magnetic field are enhanced by ~17.5‐fold and ~ 45‐fold, respectively. With the proposed antenna, a photovoltage of 0.85 μV can be detected in the monolayer 1.5 m away from the transmitting antenna, with input power of 30 dBm. This work provides an effective method to enhance the spin rectification effect signal in the far field region and paves the way for spintronic devices to be potentially utilized in practical wireless applications, such as quantum information, photovoltaics, and nanogenerator.

中文翻译：

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PIFA增强微波场自旋整流效应的研究

自旋整流作用的进展，因为其低转换效率而受到阻碍，这种进步具有无线给纳米器件供电的潜力。为了解决这个问题，设计了一个5.8 GHz平面倒F形天线，该天线旨在收集辐射的微波功率，并在坡莫合金（Py，Ni ₈₀ Fe ₂₀）单层。电场和磁场分别增强了〜17.5倍和〜45倍。使用建议的天线，可以在距发射天线1.5 m的单层中检测到0.85μV的光电压，输入功率为30 dBm。这项工作提供了一种有效的方法来增强远场区域中的自旋整流效应信号，并为自旋电子器件在诸如量子信息，光伏和纳米发电机等实际无线应用中潜在使用铺平了道路。