Correlated decay of triplet excitations in the Shastry-Sutherland compound SrCu${}_2$(BO${}_3$)${}_2$

M. E. Zayed, Ch. Rüegg, Th. Strässle +8

The temperature dependence of the gapped triplet excitations (triplons) in the 2D Shastry-Sutherland quantum magnet SrCu${}_2$(BO${}_3$)${}_2$ is studied by means of inelastic neutron sc…