-Type Double Doping and the Diamond-like Morphology Shift of the Zintl Phase Thermoelectric Materials: The CaASbGe (A = Na, Li; 0.06(3) ≤ ≤ 0.17(5), 0.19(1) ≤ ≤ 0.55(1), 0.13(1) ≤ ≤ 0.22(1)) System.

Five ternary and quaternary Zintl phases in the solid-solution CaASbGe (A = Na, Li; 0.06(3) ≤ ≤ 0.17(5), 0.