Field-induced criticality in a gapped quantum magnet with bond disorder

D. Hüvonen, S. Zhao, M. Månsson +6

Neutron diffraction and calorimetric measurements are used to study the field-induced quantum phase transition in piperazinium-Cu${}_2$(Cl${}_{1-x}$Br${}_x$)${}_6$ ($x=0$, x=3.5% and x=7.5…