Abstract

MnxCd1−xTe alloys are studied by wavelength modulation reflectivity for the composition range 0<x<0.75. Optical transitions around Γ and Λ critical points are investigated from T=10–300 K. In all the composition ranges the nature of the transitions appears to be the same as in CdTe: E0=Γv8−Γc6, E1=Λc6−(Λ4+Λ5)v, E1+Δ1=Λc6−Λv8. The energy position of these structures changes linearly with x.

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