Abstract
The far infrared reflectivity of Hg 1- x Mn x Te samples with x = 0.01, 0.06, and 0.11 has been measured between 5.5 and 295 K. For x = 0.06 and T = 5.5 K, fits to a dielectric function including an approximate interband term gave the first determination of m ∗/m 0 = 0.0059 , and band gap value, -39±10 meV, in good agreement with the result of Bastard et al. The temperature and alloy dependence of the coupled plasmon-phonon modes has also been determined.
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