Figure 4.

NTE mechanism of Mn₃Ge. Temperature dependence of (a) the Mn moments of Mn₃Ge and Mn₃Sn, (b) the relative change in unit cell volume of Mn₃Ge and Mn₃Sn, (c) the Mn moment and lattice parameter $a$ of Mn₃Ge, and (d) $dM/dT$ and $\text{d}\left(\text{Δ}l/l\right)/\text{d}T$ of Mn₃Ge and Mn₃Sn.