Fig. 1
From: The nature of spin excitations in the one-third magnetization plateau phase of Ba3CoSb2O9
Stacked triangular lattice and the UUD state. a Spin structure in the quasi-2D lattice. b Crystal structure of Ba3CoSb2O9. c Magnetization curve for \({\mathbf{H}}||ab\) at T = 0.6 K highlighting the 1/3 plateau (the finite slope is due to Van Vleck paramagnetism33)
