Confinement of Skyrmions in Nanoscale FeGe Device-like Structures.

ABSTRACT: Skyrmion-based devices have been proposed as a promising solution for low-energy data storage. These devices include racetrack or logic structures and require skyrmions to be confined in regions with dimensions comparable to the size of a single skyrmion. Here we examine skyrmions in FeGe device shapes using Lorentz transmission electron microscopy to reveal the consequences of skyrmion confinement in a device-like structure. Dumbbell-shaped elements were created by focused ion beam milling to provide regions where single skyrmions are confined adjacent to areas containing a skyrmion lattice. Simple block shapes of equivalent dimensions were also prepared to allow a direct comparison with skyrmion formation in a less complex, yet still confined, device geometry. The impact of applying a ma

SUBMITTER: Twitchett-Harrison AC 

PROVIDER: S-EPMC9520970 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature