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Quantum corrections to the conductivity of a natural Nd2−x CexCuO4 superlattice

  • Low-Dimensional Systems and Surface Physics
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Abstract

Temperature and magnetic field dependences of the resistivity and Hall coefficient in layered single-crystal Nd2−x CexCuO4 (x = 0.12) films are experimentally investigated and analyzed. It is shown that this material clearly exhibits quantum effects characteristic of 2D semiconductor structures: negative magnetoresistance caused by suppression of the interference quantum correction by a magnetic field, a near-logarithmic temperature dependence of the conductivity, and a temperature dependence of the Hall coefficient related to e-e interaction. It is shown that, when analyzing experimental data, it is necessary to take interlayer transitions into account. Such an approach provides quantitative agreement between experiment and the standard theory of quantum corrections.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Yekaterinburg, 620219, Russia

    G. M. Min’kov, A. I. Ponomarev, A. A. Sherstobitov & S. G. Novokshonov

  2. Moscow Institute of Engineering Physics, Kashirskoe sh. 31, Moscow, 115410, Russia

    A. A. Ivanov

Authors
  1. G. M. Min’kov
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  2. A. I. Ponomarev
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  3. A. A. Sherstobitov
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  4. S. G. Novokshonov
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  5. A. A. Ivanov
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__________

Translated from Fizika Tverdogo Tela, Vol. 47, No. 10, 2005, pp. 1894–1900.

Original Russian Text Copyright © 2005 by Min’kov, Ponomarev, Sherstobitov, Novokshonov, Ivanov.

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Min’kov, G.M., Ponomarev, A.I., Sherstobitov, A.A. et al. Quantum corrections to the conductivity of a natural Nd2−x CexCuO4 superlattice. Phys. Solid State 47, 1972–1979 (2005). https://doi.org/10.1134/1.2087754

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  • DOI: https://doi.org/10.1134/1.2087754

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