Abstract
The energy variation of E ∘ reflectivity peaks in Cd 1−x Zn x S hexagonal single crystals has been measured as a function of x. At 80°K, fine structure associated with splitting of the uppermost valence band is resolved across the whole composition range. The quasi-cubic model of Hopfield is used to calculate the variation in spin orbit and crystal field splittings between CdS and ZnS.
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