Investigating field-induced magnetic order in Han Purple by neutron scattering up to 25.9 T

S. Allenspach, A. Madsen, A. Biffin +14

BaCuSi${}_2$O${}_6$ is a quasi-two-dimensional (2D) quantum antiferromagnet containing three different types of stacked, square-lattice bilayer hosting spin-1/2 dimers. Although this c…