Figure 3: Magnetic droplet soliton without DMI.
From: A reversible conversion between a skyrmion and a domain-wall pair in a junction geometry
A similar process to Fig. 2 but without the DMI. (a–f) A magnetic droplet soliton is formed from a DW pair, and then disappears by emitting spin waves. It has zero topological number (Q=0). The in-plane current density along −x direction is 1.8 μA nm−2 in the wide part. (g–l) A DW pair remains as a DW pair when the in-plane current density along −x direction is 1.2 μA nm−2 in the wide part.
