Piezoresistance inp-TypeMg2Sn

Measurements of piezoresistance in $p$-type magnesium stannide with a hole concentration of ∼1.0×${10}^{16}$ ${\mathrm{cm}}^{-3\mathrm{}}$ have been made in the temperature range 80-300°K. The valence-band structure appears to be similar to that of germanium. Data in the intrinsic region, where the conduction is electron-dominated, confirm the presence of a many-valley-type conduction-band structure with minima along the $〈100〉$ axes.