Congratulations to Gregory and coauthors on their recent publication in Nature. They describe an effect in which a magnetic state can be reversed simply by application of a gate voltage, which arises from the extremely unusual properties of orbital magnets realized, in this case, in a moire graphene heterostructure. Unlike every magnet known since Thales of Miletus first described lodestones 2600 years ago, orbital magnets do not rely on aligning the electron spins, but rather the two dimensional orbits of the electrons themselves. That means they can be controlled in completely different ways, and this paper demonstrates a beautiful and clean way to do that.
