论文标题
基于抗铁磁铁的THZ频率信号的电探测器
Electrically tunable detector of THz-frequency signals based on an antiferromagnet
论文作者
论文摘要
提出了基于反铁磁/重金属（AFM/HM）杂结构的THZ频率信号的电气共振检测器的概念。 THZ频率输入信号转换为直流电压，使用（AFM/HM）双层中的反旋转霍尔效应完成。 HM层中的额外偏置直流电流可用于改变AFM的有效各向异性，因此可以调整AFMR频率。所提出的AFM/HM杂构结构是一种共振型二次检测器，可以通过偏置电流至少10％的AFMR频率调节，我们的估计表明，该探测器的敏感性可以与基于Schottky，Gunn，Gunn，Gunn或Graphinene基于基于Grupharene的Diodes的现代探测器相当。
A concept of an electrically tunable resonance detector of THz-frequency signals based on antiferromagnetic/heavy metal (AFM/HM) hetero-structure is proposed. The conversion of a THz-frequency input signal into DC voltage is done using the inverse spin Hall effect in an (AFM/HM) bilayer. An additional bias DC current in the HM layer can be used to vary the effective anisotropy of the AFM, and, therefore, to tune the AFMR frequency. The proposed AFM/HM hetero-structure works as a resonance-type quadratic detector which can be tuned by the bias current in the range of at least 10 percent of the AFMR frequency and our estimations show that the sensitivity of this detector could be comparable to that of modern detectors based on the Schottky, Gunn or graphene-based diodes.
