https://www.sciencedaily.com/releases/2019/04/190401115746.htm

Skyrmionics focuses on harnessing the properties of nanometer-sized structures in magnetic films called skyrmions. These spin on the surface of the magnet like tiny vortices, and scientists believe they could be used to store much denser quantities of data than is currently possible using existing magnetic data storage techniques on which modern computers currently rely.

The shape of these skyrmion structures means data encoded in them could also be transferred using much less power than is currently achievable.