论文标题
自旋旋转铁磁共振共振的自旋电路表示
Spin-circuit representation of spin-torque ferromagnetic resonance
论文作者
论文摘要
旋转扭曲的铁磁共振（ST-FMR），特别是使用具有巨大自旋效果（SHE）的磁绝缘子和重金属的磁性绝缘体（SHE），这引起了Spintronic设备的开发。为了设计复杂的功能设备，有必要构建不同现象的等效旋转电路表示。这种表示形式可用于将物理方程式转换为电路元素，对实验进行基准测试，然后提出创造性和高效的设计。我们利用电路理论中的叠加原理来分开ST-FMR实验中的自旋霍尔磁场和自旋泵的贡献。我们表明，所提出的自旋电路表示重现了文献中的标准结果。我们进一步考虑了多层的多层，例如带有两个磁层的SHE层的自旋阀结构，并显示如何通过简单地编写矢量网列并使用电路理论解决相应的自旋电路表示。
Spin-torque ferromagnetic resonance (ST-FMR) particularly using magnetic insulators and heavy metals possessing a giant spin Hall effect (SHE) has gotten a lot of attention for the development of spintronic devices. To devise complex functional devices, it is necessary to construct the equivalent spin-circuit representations of different phenomena. Such representation is useful to translate physical equations into circuit elements, benchmarking experiments, and then proposing creative and efficient designs. We utilize the superposition principle in circuit theory to separate the spin Hall magnetoresistance and spin pumping contributions in the ST-FMR experiments. We show that the proposed spin-circuit representation reproduces the standard results in literature. We further consider multilayers like a spin-valve structure with an SHE layer sandwiched by two magnetic layers and show how the corresponding spin-circuit representation can be constructed by simply writing a vector netlist and solved using circuit theory.
