Artificial spin ices are nanomagnetic metamaterials, whose collective magnetization self-organizes into extended domains. However, controlling when, where and how domains change has proven difficult, yet is crucial for technological applications. Here, Jensen and Strømberg et al. introduce astroid clocking, which enables controlled, stepwise growth and reversal of magnetic domains, using only global fields.
- Johannes H. Jensen
- Anders Strømberg
- Erik Folven
