Random singlet state in Ba${}_5$CuIr${}_3$O${}_{12}$ single crystals

Pavel A. Volkov, Choong-Jae Won, D. I. Gorbunov +6

We study the thermodynamic and high-magnetic-field properties of the magnetic insulator Ba${}_5$CuIr${}_3$O${}_{12}$, which shows no magnetic order down to 2 K consistent with a spin liq…