Sub-millikelvin station at Synergetic Extreme Condition User Facility Project supported by the National Basic Research Program of China (Grant Nos. 2016YFA0300601, 2015CB921402, 2011CB921702, and 2009CB929101), the National Natural Science Foundation of China (Grant Nos. 11527806, 91221203, 11174340, 11174357, and 91421303), and the Strategic Priority Research Program B of the Chinese Academy of Sciences (Grant No. XDB07010100). Z.G.C. acknowledges the support from Hundreds Talent Program, Chinese Academy of Sciences. |
Nuclear spin entropy reduction of 1.4 mol of Nb (solid line), 1.0 mol of In (dotted line), 2.0 mol of Cu (dotted-dashed line), and 0.3 mol of PrNi5 (dashed line). Panels (a) and (b) plot the same set of data within a different temperature range. The aforementioned amount of each material yields the same volume of refrigerant. (Regenerated from Ref. [ |