Figure 4
From: A strategy for the design of skyrmion racetrack memories
Néel skyrmion motion due to the SHE: effect of the confinement.
(a), Sketch of the skyrmion motion due to the SHE in a sample confined along the y-direction. (b), Skyrmion velocity (x-direction) as a function of the current: (i) no thermal fluctuations and perfect strip (red curve) and (ii) thermal fluctuations (T = 350 K) and rough strip (black curve). (c), Skyrmion velocity as a function of the current when the strip width w is 100 nm (red curve), 150 nm (black curve) and 200 nm (blue curve). The colors for (a) refer to the z-component of the magnetization (blue negative, red positive).
