垂直点接触自旋霍尔纳米振荡器中自旋波动力学的微磁学模拟

朱耿宽, 高振宇, 陈丽娜, 周恺元, 梁力克, 陶醉, 刘荣华

Micromagnetic simulations of spin⁃wave dynamics in a vertical nanocontact⁃based Spin Hall nano⁃oscillator

Gengkuan Zhu, Zhenyu Gao, Li'na Chen, Kaiyuan Zhou, Like Liang, Zui Tao, Ronghua Liu

图6 振荡器频谱随面外磁场角度 $φ$ 变化的依赖关系:（a）和（b）分别为激发电流 $I = 6 ? m A$ 和 $I = 9 ? m A$
The white dotted line in the figure is the dispersion relationship curve of the ferromagnetic resonance frequency f_FMR with the magnetic field,
and the f₁ and f₂ represent two types of coherent spin wave patterns.

Fig.6 The dependence of the oscillator spectrum with the angle of the out?of?plane magnetic field, where excitation currents $I = 6 ? m A$ (a) and $9 ? m A$ (b)