Thermoelectric Performance of Cr Doped and Cr–Fe Double-Doped Higher Manganese Silicides with Adjusted Carrier Concentration and Significant Electron–Phonon Interaction

Polycrystalline higher manganese silicides Mn1–xCrxSi1.74 (x = 0, 0.10, 0.20) with Cr single doping and Mn1–2yCryFeySi1.74 (y = 0.10, 0.20) with Cr–Fe double doping have been prepared by arc meltin...