Anomalous low-temperature heat capacity in antiperovskite compounds
Guo Xin-Ge1, 2, Lin Jian-Chao1, Tong Peng1, †, Lin Shuai1, Yang Cheng1, Lu Wen-Jian1, Song Wen-Hai1, Sun Yu-Ping1, 3, 4
       

(color online) Energies of Einstein model corresponding to the peak in (CγT)/T 3 versus T curve as a function of lattice constant for antiperovskite compounds.