论文标题
通过稀土铁石榴石的轨道角动量增强热自旋泵送
Enhancement of thermal spin pumping by orbital angular momentum of rare earth iron garnet
论文作者
论文摘要
在铁磁和非磁性金属的双层中，可以通过热梯度产生自旋泵。自旋电流的产生取决于界面的自旋混合电导和铁磁层的磁性特性。由于其内在阻尼低，稀土铁石榴石通常用于旋转Seebeck实验中的铁磁层。但是，它实际上是一种具有抗磁性耦合磁性晶格的铁磁磁性，并且稀土铁石榴石对热自旋泵的稀土磁晶格的贡献尚不很好。在这里，我们着重于灯笼的磁性特性的影响，并表明稀土铁石榴石的轨道角动量增强了热自旋的当前产生的灯笼型lanthanide取代的Yttrium Iron Garnet。
In a bilayer of ferromagnetic and non-magnetic metal, spin pumping can be generated by a thermal gradient. The spin current generation depends on the spin mixing conductance of the interface and the magnetic properties of the ferromagnetic layer. Due to its low intrinsic damping, rare earth iron garnet is often used for the ferromagnetic layer in the spin Seebeck experiment. However, it is actually a ferrimagnetic with antiferromagnetically coupled magnetic lattices and the contribution of rare earth magnetic lattice of rare earth iron garnet on thermal spin pumping is not well understand. Here we focus on the effect of magnetic properties of lanthanide and show that the orbital angular momentum of rare earth iron garnet enhances thermal spin current generation of lanthanide substituted yttrium iron garnet.
