论文标题
磁绝缘子中的磁杆驱动器旋转多普勒的转移
Spin-Wave Doppler Shift by Magnon Drag in Magnetic Insulators
论文作者
论文摘要
通过电荷电流对准粒子分散体的多普勒偏移负责金属铁磁体的磁接地状态的超导体和不稳定性中的临界超电流。在这里，我们预测了磁绝缘子的薄膜中的类似作用，在这种薄膜中，通过接近条线发射的微波产生相干性手性旋转电流，从而导致磁通分散体的多普勒移位。磁波不稳定性抑制了镁麦克尼（Magnon-Magnon）的相互作用，该镁麦克尼（Magnon-Magnon）的相互作用将旋转电流限制在接近不稳定性的阈值的值中。磁性磁流在磁性方面的旋转电流限制应被视为磁通设备中的设计参数。
The Doppler shift of the quasiparticle dispersion by charge currents is responsible for the critical supercurrents in superconductors and instabilities of the magnetic ground state of metallic ferromagnets. Here we predict an analogous effect in thin films of magnetic insulators in which microwaves emitted by a proximity stripline generate coherent chiral spin currents that cause a Doppler shift in the magnon dispersion. The spin-wave instability is suppressed by magnon-magnon interactions that limit spin currents to values close to but below the threshold for the instability. The spin current limitations by the backaction of magnon currents on the magnetic order should be considered as design parameters in magnonic devices.
