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On the hole scattering anisotropy in the PbSb2Te4 layered compound from data on the Nernst-Ettingshausen coefficient

  • Semiconductors and Dielectrics
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Abstract

Three independent components of the Nernst-Ettingshausen coefficient tensor Q ikl are experimentally measured for an anisotropic single crystal of the p-PbSb2Te4 layered compound. The components Q 123 and Q 132 are found to be negative, whereas the component Q 321 is positive. The experimental data on the anisotropy of the Nernst-Ettingshausen coefficient are discussed together with the available data on the thermopower, the Hall effect, and the electrical conductivity. The analysis demonstrates that the experimental data on the transport effects in p-PbSb2Te4 can be explained within a one-band model of the band spectrum and a mixed mechanism of hole scattering under the assumption that scattering from acoustic phonons and scattering from impurity ions are dominant in the cleavage plane and along the c 3 trigonal axis, respectively.

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References

  1. L. E. Shelimova, O. G. Karpinskii, T. E. Svechnikova, E. S. Avilov, M. A. Kretova, and V. S. Zemskov, Neorg. Mater. 40(12), 1440 (2004) [Inorg. Mater. 40 (12), 1264 (2004)].

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  3. M. K. Zhitinskaya, S. A. Nemov, L. E. Shelimova, T. E. Svechnikova, and P. P. Konstantinov, Fiz. Tverd. Tela (St. Petersburg) 50(1), 8 (2008) [Phys. Solid State 50 (1), 6 (2008)].

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Authors and Affiliations

  1. St. Petersburg State Polytechnical University, Politekhnicheskaya ul. 29, St. Petersburg, 195251, Russia

    S. A. Nemov & M. K. Zhitinskaya

  2. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiĭ pr. 49, Moscow, 119991, Russia

    L. E. Shelimova & T. E. Svechnikova

Authors
  1. S. A. Nemov
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  2. M. K. Zhitinskaya
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  3. L. E. Shelimova
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  4. T. E. Svechnikova
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Correspondence to S. A. Nemov.

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Original Russian Text © S.A. Nemov, M.K. Zhitinskaya, L.E. Shelimova, T.E. Svechnikova, 2008, published in Fizika Tverdogo Tela, 2008, Vol. 50, No. 7, pp. 1166–1168.

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Nemov, S.A., Zhitinskaya, M.K., Shelimova, L.E. et al. On the hole scattering anisotropy in the PbSb2Te4 layered compound from data on the Nernst-Ettingshausen coefficient. Phys. Solid State 50, 1215–1218 (2008). https://doi.org/10.1134/S1063783408070044

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  • DOI: https://doi.org/10.1134/S1063783408070044

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