For h=0 and T = 0.005, (a) D-δ phase diagram; (b) thermal Drude weight and (c) entropy as a function of δ for D = 0 and 0.25; (d) D dependence of entropy for δ=−0.5 and 0.5."
Figure 1.
Figure 2.
From T = 0.01 to 0.05, Güneisen ratio as a function of δ for (a) D = 0 and (c) D = 0.25; the inset in (a) is the inverse of Güneisen ratio as a function of δ at the lowest temperature. (e) Güneisen ratio as a function of D for δ=0.5, the inverse of Güneisen ratio as a function of (D-Dc) is plotted in the inset at the lowest temperature. The temperature dependence of critical Güneisen ratio for (b) D = 0, (d) D = 0.25 and (f) δ=0.5."
Figure 2.
Figure 3.
For D = 0, the field dependence of Güneisen ratio under different temperatures in (a) δ=0 and (c) δ=1; the inverse of Güneisen ratio as a function of (h-hc) is plotted in the inset of (a) at the lowest temperature; the temperature dependence of critical Güneisen ratio in (b) δ=0 and (d) δ=1.0."
Figure 3.
Figure 4.
For δ = 0.5, (a) D-h phase diagram; the field dependence of (b) entropy and (c) correlation function with different DM interactions; (d) the correlation function as a function of D under different fields; the inset in (b) is the D dependence of entropy, while the inset in (c) is the first derivative of correlation function."
Figure 4.
Figure 5.
At low temperatures, for δ=0.5, the field dependence of Güneisen ratio in (a) D = 0.1 and (c) D = 0.4; (e) Güneisen ratio as a function of D with h=0.4; the temperature dependence of critical Güneisen ratio in (b) D = 0.1, (d) D = 0.4 and (f) h=0.4."
),Yuan Zhong(钟园)
