Parameters of electron transfer in InP

Abstract

Calculation of the Γ minimum nonparabolicity of InP from the band structure shows that Kane's theory, which has been used in all velocity‐field calculations, underestimates the nonparabolicity and hence causes understimation of the threshold field. The velocity‐field characteristic is predicted to be anisotropic. The effective mass components for the L and X valleys are calculated from the band structure. The deformation potential ΞΓL , derived from photoemission data, is large enough that the two‐level model appears adequate for calculation of the threshold field.