论文标题
单向磁耦合
Unidirectional magnetic coupling
论文作者
论文摘要
我们表明，层间dzyaloshinskii-moriya相互作用与非本地吉尔伯特阻尼结合使用会导致单向磁耦合。也就是说，两个磁性层之间的耦合（例如左侧和右图）使得左侧层的动力学会导致右侧的动力学，但反之亦然。我们讨论了该结果对磁性双层，电动旋转传输以及单向自旋波数据包生成和传播的磁敏感性的含义。我们的结果可能使旋转电流和自旋波二极管的途径可以通过储层工程为设计自旋设备的方式铺平了道路。
We show that interlayer Dzyaloshinskii-Moriya interaction in combination with non-local Gilbert damping gives rise to unidirectional magnetic coupling. That is, the coupling between two magnetic layers -- say the left and right layer -- is such that dynamics of the left layer leads to dynamics of the right layer, but not vice versa. We discuss the implications of this result for the magnetic susceptibility of a magnetic bilayer, electrically-actuated spin-current transmission, and unidirectional spin-wave packet generation and propagation. Our results may enable a route towards spin-current and spin-wave diodes and further pave the way to design spintronic devices via reservoir engineering.
