论文标题
通过扫描逆旋霍尔效应计量仪调查的旋转散射机理
Mechanism of Spin Scattering in Ta investigated by Scanning Inverse Spin Hall Effect Meters
论文作者
论文摘要
在这项工作中，已经建立了基于简短的同轴谐振器的扫描反向自旋效果测量系统，该系统提供了一种表征旋转传输特性的高通量方法。通过自动测量具有不同厚度的TA的PY/TA双层条，在室温下TA的自旋扩散长度确定。结果表明，自旋扩散长度约为4 nm，电导率约为7.5E5Ω-1M-1，这得出的结论是，TA的自旋松弛的固有机制是Elliott-yfet相互作用。在这项工作中开发的设置提供了一种方便，高效且无损的方法来获得自旋材料的自旋和电子传输特性，该特性将通过开发新材料并弄清楚其机制来施肥该社区。
In this work, a scanning inverse spin Hall effect measurement system based on a shorted coaxial resonator has been built, which provides a high throughput method to characterize spin transport properties. The spin diffusion length of Ta at room temperature is determined via automatic measurements of Py/Ta bilayer strips with different thicknesses of Ta. The results show that the spin diffusion length is about 4 nm with a conductivity of about 7.5E5 Ω-1m-1, which leads to the conclusion that the intrinsic mechanism of spin relaxation of Ta is the Elliott-Yafet interactions. The setup developed in this work provides a convenient, efficient, and non-destructive way to obtain the spin and electron transportation characteristics of the spintronic materials, which will fertilize this community by developing new materials and figuring out their mechanism.
