Abstract
Plasma reflection spectra in pure and doped Bi1−xSbx alloys, obtained in the 20–200 μm wavelength range at nitrogen temperatures, are investigated and formulas by means of which the optical parameters of the materials are determined are given a foundation. The dependences of the plasma frequency on the antimony concentration and the degree of doping in the alloy are used for a quantitative confirmation of the validity of the proposed band models to describe the L zones and the scheme for reorganization of the energy spectrum of Bi1−xSbx alloys with the rise in antimony concentration x and in the temperature. An analysis showed that the Abrikosov model describes the experimental results better.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No.2, pp.5–20, February, 1976.
In conclusion, we express our gratitude to A. D. Belaya and V. P. Gusakov for providing the doped bismuth—antimony specimens, to N. B. Brandt, Ya. G. Ponomarev, and O. N. Belousova for providing the apparatus to make the galvanomagnetic measurements and for discussing the results at different stages of the research, and also to V. M. Kostin for aid in the electronic computer computations.
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Belovolov, M.I., Vavilov, V.S., Egorov, V.D. et al. Plasma reflection in pure and doped bismuth-antimony alloys. Soviet Physics Journal 19, 139–151 (1976). https://doi.org/10.1007/BF00942859
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DOI: https://doi.org/10.1007/BF00942859