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We present a detailed study of the electronic transport properties on asingle crystalline specimen of the moderately disordered heavy fermion systemURh$_2$Ge$_2$. For this material, we find glassy electronic transport in asingle crystalline compound. We derive the temperature dependence of theelectrical conductivity and establish metallicity by means of opticalconductivity and Hall effect measurements. The overall behavior of theelectronic transport properties closely resembles that of metallic glasses,with at low temperatures an additional minor spin disorder contribution. Weargue that this glassy electronic behavior in a crystalline compound reflectsthe enhancement of disorder effects as consequence of strong electroniccorrelations.Comment: 5 pages, 4 figures, accepted for publication in PR

physical review letters

Metallic Ground State and Glassy Transport in Single Crystalline<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow><mml:mi mathvariant="normal">U</mml:mi><mml:mi mathvariant="normal">R</mml:mi><mml:mi mathvariant="normal">h</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant="normal">G</mml:mi><mml:mi mathvariant="normal">e</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub></mml:math>: Enhancement of Disorder Effects …

Metallic Ground State and Glassy Transport in Single CrystallineURh2Ge2: Enhancement of Disorder Effects …