Grüneisen ratio quest for self-duality of quantum criticality in a spin-1/2 XY chain with Dzyaloshinskii-Moriya interaction

Lin-Jie Ding(丁林杰),Yuan Zhong(钟园)

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.