Fig. 4: Temperature-dependent transport properties of n-type single crystalline α-Mg3Bi2 along the ab-plane and c-axis.

Temperature-dependent electrical conductivity (a) (the dashed line shows the temperature dependence expected for acoustic phonon scattering), Seebeck coefficient (b), power factor (c), thermal conductivity (d), and zT value (e). f The power factor (PF), weighted mobility (µw), and carrier concentration (n) of some n-type α-Mg3Bi2-based single crystals and polycrystalline samples are listed in Supplementary Table 739,59,60,61,62,63,64,65,66.