Abstract
We report on measurements at low temperatures (1.5 to 11K) of the electrical resistivity and thermal conductivity of pnictide compounds LnSb (Ln=La, Er, Tm) as well as the induced moment system PrCu5. The anomalous temperature dependence of these transport properties provide strong evidence of an increased scattering of the carriers through exchange and aspherical Coulomb interaction with the localized 4f electrons.

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