Radio Frequency Mixer Based on Magnetic Skyrmion,Physica Status Solidi-Rapid Research Letters

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Radio Frequency Mixer Based on Magnetic Skyrmion
Physica Status Solidi-Rapid Research Letters ( IF 2.5 ) Pub Date : 2020-06-22 , DOI: 10.1002/pssr.202000249
Chengkun Song ₁ , Yunxu Ma ₁ , Chendong Jin ₁ , Haiyan Xia ₁ , Jianing Wang ₁ , Zhaozhuo Zeng ₁ , Jianbo Wang _{1,

2} , Qingfang Liu ₁

Affiliation

A radio frequency (RF) mixer constructed by skyrmion‐based spin transfer nano‐oscillator (STNO) is proposed. The skyrmion oscillator is treated as an information carrier and one of the input signals, and a perpendicular microwave field acts as another input signal. It is demonstrated that skyrmion‐based RF mixer can transmit two input signals to an output signal with multiple new frequencies, which are equal to the sum and difference of input frequencies. Through micromagnetic simulations, it is found that the frequency of output signals is modulated by the amplitude of input microwave field as well as the current density applied in skyrmion oscillator and by other magnetic parameters of oscillator (such as magnetic anisotropy). Compared with conventional RF mixer with nonlinear element, such as diode, the skyrmion‐based RF mixer integrates both input signals and output signal functionality with nanometer size, which is more efficient and shows significant potential application in the RF multiplication devices, integrated electronics, and microwave generators.

中文翻译：

基于磁天窗的射频混频器

提出了一种由基于Skyrmion的自旋转移纳米振荡器（STNO）构造的射频（RF）混频器。天rm离子振荡器被视为信息载体和输入信号之一，垂直微波场被用作另一输入信号。事实证明，基于skyrmion的RF混频器可以将两个输入信号传输到具有多个新频率的输出信号，这些频率等于输入频率的和与差。通过微磁仿真，发现输出信号的频率受输入微波场的振幅，天rm离子振荡器中施加的电流密度以及振荡器的其他磁参数（例如磁各向异性）的影响。与带有非线性元件（例如二极管）的常规RF混频器相比，

更新日期：2020-06-22

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