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Temperature dependence of the hole concentration in the model of a hole metal with negative-U centers

  • Metals and Superconductors
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Abstract

The temperature dependence of the hole concentration is studied within the model of a hole metal with negative-U centers. Different versions of the model with a simplified representation of allowed bands and a quadratic valence-band dispersion law are considered. It is found that the temperature dependence of the hole concentration can acquire different forms, and the regions of the model parameters corresponding to these forms are determined. The results obtained are used in the discussion of the relation between normal to superconducting properties of high-temperature superconductors.

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Authors and Affiliations

  1. Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia

    I. A. Barygin & K. D. Tséndin

Authors
  1. I. A. Barygin
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  2. K. D. Tséndin
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Correspondence to I. A. Barygin.

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Original Russian Text © I.A. Barygin, K.D. Tséndin, 2009, published in Fizika Tverdogo Tela, 2009, Vol. 51, No. 1, pp. 28–32.

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Barygin, I.A., Tséndin, K.D. Temperature dependence of the hole concentration in the model of a hole metal with negative-U centers. Phys. Solid State 51, 27–32 (2009). https://doi.org/10.1134/S1063783409010028

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  • DOI: https://doi.org/10.1134/S1063783409010028

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