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Special Features of the Reflection Coefficient in (Pb0.78Sn0.22)1–xInxTe (x = 0.05–0.20)

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Abstract

Spectral dependences of the reflection coefficient R are studied in solid solutions of (Pb0.78Sn0.22)1–x In x Te with indium content in the mixture x = 0.05–0.20 at T = 300 K. In the R(λ) spectra of each of the examined specimens, two minima of the reflection coefficient are revealed: one in the short-wavelength region at λ = 1–2 μm, and the other – in the long-wavelength region at λ = 25–30 μm, the latter being due to plasma vibrations of free electrons. Peculiar features of the short-wavelength minima in the R(λ) dependences are analyzed. It is shown that these minima are likely to be associated with heterogeneities formed by the nonuniform spatial distribution of indium in the specimen.

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  1. St. Petersburg State Technical University, Russia

    A. N. Weis

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  1. A. N. Weis
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Weis, A.N. Special Features of the Reflection Coefficient in (Pb0.78Sn0.22)1–xInxTe (x = 0.05–0.20). Russian Physics Journal 44, 790–793 (2001). https://doi.org/10.1023/A:1013639315702

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  • DOI: https://doi.org/10.1023/A:1013639315702

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