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Heat conductivity of the heavy-fermion compound YbAgCu4

  • Metals and Superconductors
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Abstract

The heat conductivity and electrical resistivity of a polycrystalline YbAgCu4 sample were measured in the 4.2–300-K temperature range. It is shown that at low temperatures (in the region corresponding to the coherent Kondo lattice) the Lorenz number behaves in accordance with a theoretical model developed for heavy-fermion materials.

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Authors and Affiliations

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

    A. V. Golubkov, L. S. Parfen’eva & I. A. Smirnov

  2. Institute of Low-Temperature and Structural Research, Polish Academy of Sciences, Wroclaw, 53-529, Poland

    H. Misiorek, J. Mucha & A. Jezowski

Authors
  1. A. V. Golubkov
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  2. L. S. Parfen’eva
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  3. I. A. Smirnov
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  4. H. Misiorek
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  5. J. Mucha
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  6. A. Jezowski
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__________

Translated from Fizika Tverdogo Tela, Vol. 43, No. 2, 2001, pp. 210–214.

Original Russian Text Copyright © 2001 by Golubkov, Parfen’eva, Smirnov, Misiorek, Mucha, Jezowski.

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Golubkov, A.V., Parfen’eva, L.S., Smirnov, I.A. et al. Heat conductivity of the heavy-fermion compound YbAgCu4 . Phys. Solid State 43, 218–223 (2001). https://doi.org/10.1134/1.1349463

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