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Comparison of the single-electron and many-electron mechanisms of the concentration dependence of the HTSC cuprate band structure

  • Metals and Superconductors
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Abstract

The band structure of the Nd2 − x Ce x CuO4HTSC is calculated using the LDA+GTB method, which combines the local density approximation (LDA) and the generalized tight-binding (GTB) method. Two mechanisms of the concentration dependence of the band structure (single-electron and many-electron mechanisms) are taken into account. It is demonstrated that the main contribution to the evolution of the band structure with doping comes from the many-electron mechanism.

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Authors and Affiliations

  1. Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia

    V. A. Gavrichkov & S. G. Ovchinnikov

  2. Institute of Electrophysics, Ural Division, Russian Academy of Sciences, ul. Amundsena 106, Yekaterinburg, 620046, Russia

    I. A. Nekrasov & E. E. Kokorina

  3. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoĭ 18, Yekaterinburg, 620041, Russia

    Z. V. Pchelkina

Authors
  1. V. A. Gavrichkov
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  2. S. G. Ovchinnikov
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  3. I. A. Nekrasov
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  4. E. E. Kokorina
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  5. Z. V. Pchelkina
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Correspondence to V. A. Gavrichkov.

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Original Russian Text © V.A. Gavrichkov, S.G. Ovchinnikov, I.A. Nekrasov, E.E. Kokorina, Z.V. Pchelkina, 2007, published in Fizika Tverdogo Tela, 2007, Vol. 49, No. 11, pp. 1958–1963.

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Gavrichkov, V.A., Ovchinnikov, S.G., Nekrasov, I.A. et al. Comparison of the single-electron and many-electron mechanisms of the concentration dependence of the HTSC cuprate band structure. Phys. Solid State 49, 2052–2057 (2007). https://doi.org/10.1134/S1063783407110066

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  • DOI: https://doi.org/10.1134/S1063783407110066

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