Figure 2

(a, d) Time evolution of averaged \({\mathbf{m}}_{1}\) and \(|{\mathbf{m}}_{1}|\), (b, e) \({\mathbf{m}}_{1}\) trajectories, and (c, f) Fourier spectra of \({m}_{1,y}\) for \(j=-1.0\times {10}^{11}\) and \(-2.0\times {10}^{11}\) A/m2, respectively. The interlayer exchange couplings are \(\left({J}_{1},{J}_{2}\right)=(0.6,-0.6)\) mJ/m2.