Fig. 2: Dynamics of the AFM bimeron soliton excited by spin currents.
a Steady motion speed of an AFM bimeron soliton driven by CIP as a function of the angle θp between the in-plane p and the +X-axis. b Deformations of an AFM bimeron soliton induced by CIP with j = 2 × 1011 A m−2, when θp = 0°, 90°, 180°, and 270°, respectively. The directions of p and the velocity v are denoted by the black and the green arrows, respectively. c θv as a function of θp when CIP with j = 5 × 1010 A m−2 is applied. d Steady motion speed of an AFM bimeron soliton driven by COP as a function of j. Data in a, c, and d are obtained using both micromagnetic simulations and the semi-analytical approach described by Eq. (4).
