Current-induced creation and dynamics of embedded magnetic skyrmion bags (opens in new tab)

Magnetic skyrmion bags—vortex-like structures hosting multiple skyrmions with tunable topological charge (Q)—hold significant promise for next-generation spintronic computing. However, while their creation using magnetic fields has been demonstrated, their direct electrical generation remains an outstanding challenge. Here, we report the direct current-induced formation and manipulation of embedded skyrmion bags in a FeGe nanoplate under zero magnetic field. Using in-situ Lorentz transmission...