论文标题
混合磁磁振荡器系统
Hybrid Magnonic-Oscillator System
论文作者
论文摘要
我们根据自旋传输自动振荡器和宏伟的波导的组合提出了一个混合磁磁性振荡器系统，以打开基于自旋波的电路的新视角。该系统由基于涡旋状态的自旋转移振荡器组成，该旋转状态与纵向磁化偶联到纳米级自旋波导偶联。在自动振荡方案中，振荡器以可调且可控的频率，方向和振幅发出连贯的自旋波，向波导。我们使用微磁模拟证明了该方法的原理，并通过改变磁涡的手性和极性来证明系统的重新配置是可能的。旋转波被以高非核心发射到波导中，首选方向取决于涡流的核心极性。相比之下，不同的涡流手势导致发射波的不同幅度。我们的发现为设计一种敏捷的自旋装置打开了一种新颖的方式，用于连贯且可调的传播旋转波。
We propose a hybrid magnonic-oscillator system based on the combination of a spin transfer auto-oscillator and a magnonic waveguide to open new perspectives for spin-wave based circuits. The system is composed of a spin transfer oscillator based on a vortex state which is dipolarly coupled to a nanoscale spin-wave waveguide with longitudinal magnetization. In its auto-oscillating regime, the oscillator emits coherent spin waves with tunable and controllable frequencies, directions and amplitudes into the waveguide. We demonstrate the principle of this method using micromagnetic simulations and show that reconfiguration of the system is possible by changing the chirality and polarity of the magnetic vortex. Spin waves are emitted into the waveguide with high non-reciprocity and the preferred direction depends on the core polarity of the vortex. In contrast, different vortex chiralities lead to different amplitudes of the emitted waves. Our findings open up a novel way to design an agile spintronic device for the coherent and tunable generation of propagating spin waves.
