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2008 | 113 | 1 | 387-390
Article title

Unusual Electron Transport Properties of U_{0.05}Y_{0.95}Al_2

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EN
Abstracts
EN
We report a detailed study of the resistivity (ρ(T)) and thermoelectric power (S(T)) of the alloy U_{0.05}Y_{0.95}Al_2, which crystallises in the cubic MgCu_2-type structure. The resistivity is found to follow ρ(T) ∝ ln T between 15 and 40 K and a quasi-linear temperature dependence -T^{1.16} for T <10 K. At a magnetic field of 9 T a Kondo-type maximum occurs in the resistivity data at 7 K, below which the Fermi liquid behaviour (ρ(T) ∝ T^2) is recovered. S(T)/T shows a T^{0.5} power law for T <12 K. The low-temperature unconventional features observed in U_{0.05}Y_{0.95}Al_2 are presumably due to the presence of the two-channel Kondo effect.
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  • Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland
References
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Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1095kz
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