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Magnetothermoelectric Properties of Extruded Bi85Sb15〈Pb,Te〉

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Inorganic Materials Aims and scope

Abstract—

Bi85Sb15 + 0.01 at % Pb materials have been synthesized and their electrical conductivity σ, thermoelectric power α, Hall coefficient RH, and thermal conductivity χ have been measured as functions of temperature and magnetic field. Additional doping with up to 0.1 at % tellurium donor has been shown to compensate for the Pb acceptor effect, leading to an increase in electron concentration in the samples. As a result, σ and α approach those of Bi85Sb15 free of Pb impurities. Heat treatment partially eliminates structural defects, leading to an increase in carrier mobility and lattice thermal conductivity.

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Authors and Affiliations

  1. Azerbaijani State University of Economics, AZ 1001, Baku, Azerbaijan

    M. M. Tagiyev

  2. Institute of Physics, Academy of Sciences of Azerbaijan, AZ 1141, Baku, Azerbaijan

    M. M. Tagiyev

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  1. M. M. Tagiyev
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Correspondence to M. M. Tagiyev.

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Translated by O. Tsarev

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Tagiyev, M.M. Magnetothermoelectric Properties of Extruded Bi85Sb15〈Pb,Te〉. Inorg Mater 58, 26–32 (2022). https://doi.org/10.1134/S0020168521120141

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