Significant role of nanoscale Bi-rich phase in optimizing thermoelectric performance of Mg<sub>3</sub>Sb<sub>2</sub>

Significant role of nanoscale Bi-rich phase in optimizing thermoelectric performance of Mg₃Sb₂

Wang Yang¹, Zhang Xin^{1, †}, Liu Yan-Qin¹, Zhang Jiu-Xing², Yue Ming¹

The temperature-dependent electronic transport properties of the Mg₃Sb_2−xBi_x (0.4 ≤ x ≤ 0.55) samples, showing (a) electrical resistivity ρ(T), (b) Seebeck coefficient α(T), and (c) power factor α²/ρ(T).