Direct observation of the exchange anisotropy in the helimagnetic insulator Cu${}_2$OSeO${}_3$

Priya R. Baral, Oleg I. Utesov, Chen Luo +4

The helical magnetic structures of cubic chiral systems are well-explained by the competition among Heisenberg exchange, Dzyaloshinskii-Moriya interaction, cubic anisotropy, and an…