Extended Data Fig. 7: Skyrmion trajectories with MYIG collinear to Jx.
From: Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
a, Skyrmion trajectories with Q=−1 and YIG demagnetized (see inset’s schematic). Data taken in a different device from the same YIG/TmIG/Pt heterostructure. Hz=+20 Oe, \(J_x = 3.5 \times 10^{11}\) A m−2, and tp=20 ns. The measurement protocol is the same employed in Fig. 4a. b, c, Skyrmion trajectories for MYIG pointing to +x and −x, respectively. \(\left| {H_x} \right| = 10\) Oe. In contrast to the difference observed between MYIG parallel to +y and −y (Figs. 5a and b), the skyrmion dynamics for MYIG collinear with the current is, within the error, independent on the direction of MYIG. No clear differences between \({{{\mathbf{M}}}}_{{{{\mathrm{YIG}}}}}\parallel \pm {{{\mathbf{x}}}}\) (b,c) and the demagnetized case (a) can be identified either.
