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Electrical and thermoelectric properties of Cu0.75Ni0.125FeTe2

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Abstract

The electrical conductivity, Hall coefficient, and thermopower of Cu0.75Ni0.125FeTe2 have been measured between 80 and 500 K. The results have been interpreted in terms of a three-band model which takes into account, in addition to the conduction band, two overlapping valence subbands. We have determined the energy spacing between the subbands (Δ0 K = 0.002 eV), its temperature coefficient (dΔ/dT = 1 × 10−4 eV/K), and the effective masses of the heavy and light holes and electrons. With the interband scattering of light holes taken into account, the conductivity has a minimum at ∼190 K.

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Authors and Affiliations

  1. Institute of Physics, Academy of Sciences of Azerbaijan, pr. Javida 33, Baku, AZ1143, Azerbaijan

    F. F. Aliev, G. G. Guseinov, G. P. Pashaev, G. M. Agamirzoeva & A. B. Magerramov

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  1. F. F. Aliev
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  2. G. G. Guseinov
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  3. G. P. Pashaev
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  4. G. M. Agamirzoeva
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  5. A. B. Magerramov
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Correspondence to F. F. Aliev.

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Original Russian Text © F.F. Aliev, G.G. Guseinov, G.P. Pashaev, G.M. Agamirzoeva, A.B. Magerramov, 2008, published in Neorganicheskie Materialy, 2008, Vol. 44, No. 2, pp. 156–161.

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Aliev, F.F., Guseinov, G.G., Pashaev, G.P. et al. Electrical and thermoelectric properties of Cu0.75Ni0.125FeTe2 . Inorg Mater 44, 115–120 (2008). https://doi.org/10.1134/S0020168508020064

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  • DOI: https://doi.org/10.1134/S0020168508020064

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