“The challenge of improving our data storage is becoming increasingly urgent,” explains Mark Dennis, Professor of Theoretical Physics at the University of Birmingham and lead author of the study. “We will need new technological approaches to increase the amount of data we want to store in our computers, phones and other devices, and skyrmion bags might be a route to this. Rather than using trains of single skyrmions to encode binary bits, each skyrmion bag can hold any number of skyrmions, massively increasing the potential for data storage.”