Coupled dynamics of long-range and internal spin cluster order in Cu${}_2$OSeO${}_3$

R. B. Versteeg, J. Zhu, C. Boguschewski +7

Cu${}_4$ triplet clusters form the relevant spin entity for the formation of long-range magnetic order in the cluster magnet Cu${}_2$OSeO${}_3$. Using time-resolved Raman spectroscopy, w…