Optical phonons in bulk Cd1-XZnxTe mixed crystals in the whole composition range
Résumé
Optical vibration mode frequencies of Cd1-XZnxTe solid solutions have been deduced from infrared reflectivity measurements in all the composition range for the first time. These results are in agreement with those already obtained for bulk crystals with x < 0.5 but are different from those displayed by epitaxial layers. This difference is explained by a higher ionicity of the Cd-Te bond in epilayers coming probably from an incomplete relaxation of the lattice during their growth.
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Articles anciens
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