A quantum magnet with a topological twist

Theories predict that some electrons in the kagome materials have exotic, so-called topological behaviors and others behave somewhat like graphene, another material prized for its potential for new types of electronics. An international team has observed that some of the electrons in these magnets behave collectively, like an almost infinitely massive electron that is strangely magnetic, rather than like individual particles.

https://phys.org/news/2019-02-quantum-magnet-topological.html