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Heat conductivity of the heavy-fermion compound YbAgCu4 |
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| Authors: | A V Golubkov L S Parfen’eva I A Smirnov H Misiorek J Mucha A Jezowski |
| Institution: | (1) Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia;(2) Institute of Low-Temperature and Structural Research, Polish Academy of Sciences, Wroclaw, 53-529, Poland |
| 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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