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 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.