论文标题
超薄磁绝缘子膜中强元传输的电气诱导的强调
Electrically induced strong modulation of magnons transport in ultrathin magnetic insulator films
论文作者
论文摘要
通过磁绝缘体的磁通运输可以通过电流偏置的重金属门来控制，该大门通过镁密度调节镁电导率。在这里，我们报告了10 $ \，$ nm厚的Yttrium Iron Garnet（YIG）膜中的非线性调制效果。调制效率大于40 \％/mA。高直流电流密度（2.2 $ \ times 10^{11} \，$ a/m $^{2} $）处的旋转传输信号饱和，对于400 $ \，$ nm宽的PT门，这表明即使在高电流水平上，尽管电影的磁性高磁性质量，但在高电流水平上也无法达到。
Magnon transport through a magnetic insulator can be controlled by current-biased heavy-metal gates that modulate the magnon conductivity via the magnon density. Here, we report nonlinear modulation effects in 10$\,$nm thick yttrium iron garnet (YIG) films. The modulation efficiency is larger than 40\%/mA. The spin transport signal at high DC current density (2.2$\times 10^{11}\,$A/m$^{2}$) saturates for a 400$\,$nm wide Pt gate, which indicates that even at high current levels a magnetic instability cannot be reached in spite of the high magnetic quality of the films.
