Figure 2
From: Kitaev exchange and field-induced quantum spin-liquid states in honeycomb α-RuCl3

Phase diagram for the effective spin model of (1) supplemented by second- and third-neighbor Heisenberg couplings J2 and J3.
MRCI NN interactions as listed on first entry in Table 3 were used: J = 1.2, K = −5.6, Γxy = −1.2, Γzx = −Γyz = −0.7 (meV). Schematic spin configurations for each particular phase are also shown. No external field is applied in this set of calculations (H = 0).