Non-relativistic ferromagnetotriakontadipolar order and spin splitting in hematite

X. H. Verbeek, D. Voderholzer, S. Schären +3

We show that hematite, $\alpha$-Fe${}_2$O${}_3$, below its Morin transition, has a ferroic ordering of rank-5 magnetic triakontadipoles on the Fe ions. In the absence of spin-orbit coupling…