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

(a) The x-ray diffraction patterns of Mg₃Sb_2−xBi_x (0.4 ≤ x ≤ 0.55), with (hkl) indices of diffraction peaks being marked at the bottom of the PDF card, and (b) lattice parameter varying with Bi concentrations.