Investigation Into the Depth Dependent Dynamics of Columnar Skyrmions

Our smart devices are getting increasingly intelligent, but traditional silicon chips used today are reaching physical limits. Future technology will be utilizing quantum spin to process and store data. A promising candidate for future spintronic devices is skyrmions - a stable magnetic whirlpool which can store information with a high density and requires very little energy to do so. This study focused on how the dynamics of skyrmions change with respect to depth in the multilayer material Pt/CoFeB/Ru. This was done through a technique utilizing muons to probe the internal magnetic fields of a material. We discovered that there are depth dependent behavioural changes in the material, and this is crucial to understand for developing skyrmion-based technology.