Conduction bands of GaxIn1–x Sb alloys

Abstract

Measurements of Hall coefficient and electrical conductivity have been made on alloys of the system GaxIn1–xSb over a range of temperature from 100 °K up to 950 °K or to 20° below the solidus temperature of the particular specimen, whichever was the lower. These data have then been analyzed in terms of equations involving three conduction and two valence bands, the important unknown parameters in the equations being determined by a trial and error fitting technique. The results give the variation of the energy separation from the valence band of the [Formula: see text] and [Formula: see text] conduction band minima, as well as the main (000) band gap as a function of the composition and temperature. Also determined from the analysis are the (000) electron mobilities, which are found to vary linearly with composition, indicating that alloy scattering has negligible effect on the mobility values.