Possibility of an unconventional spin state of Ir${}^{4+}$ in Ba${}_{21}$Ir${}_9$O${}_{43}$ single crystal

L. Yang, M. Jeong, A. Arakcheeva +11

We report the synthesis of single crystals of a novel layered iridate Ba${}_{21}$Ir${}_9$O${}_{43}$, and present the crystallographic, transport and magnetic properties of this material.…