论文标题
界面旋转混合电导对gd替换的旋转磁比的影响
Effect of interfacial spin mixing conductance on gyromagnetic ratio of Gd substituted Y$_{3}$Fe$_{5}$O$_{12}$
论文作者
论文摘要
由于其内在阻尼低，y $ _3 $ fe $ _5 $ o $ _ {12} $且其替代变化通常用于旋转泵送实验的铁磁层。自旋泵化是Ferromagnet和非磁性金属界面中的界面自旋电流，由自旋混合电导参数$ g^{\ Uparrow \ downarrow} $控制。 $ g^{\ uparrow \ downarrow} $已被证明可以增强铁磁层的阻尼。该理论表明，$ g^{\ uparrow \ downarrow} $对陀螺仪比率的影响仅来自其可忽略的虚构部分。在本文中，我们表明，由$ g^{\ uparrow \ downarrow} $引起的非磁性晶格的不同阻尼会影响gd-取代的y $ _3 $ _3 $ _3 $ fe $ _5 $ _5 $ _5 $ o $ _ $ _ $ _ {12} $的gyromagnetic比率。
Due to its low intrinsic damping, Y$_3$Fe$_5$O$_{12}$ and its substituted variations are often used for ferromagnetic layer at spin pumping experiment. Spin pumping is an interfacial spin current generation in the interface of ferromagnet and non-magnetic metal, governed by spin mixing conductance parameter $G^{\uparrow\downarrow}$. $G^{\uparrow\downarrow}$ has been shown to enhance the damping of the ferromagnetic layer. The theory suggested that the effect of $G^{\uparrow\downarrow}$ on gyromagnetic ratio only come from its negligible imaginary part. In this article, we show that the different damping of ferrimagnetic lattices induced by $G^{\uparrow\downarrow}$ can affect the gyromagnetic ratio of Gd-substituted Y$_3$Fe$_5$O$_{12}$.
