Magnetic order in the Kondo-lattice compound CePdIn

Abstract
Out of a systematic research program on equiatomic ternary compounds RETM (RE is a rare earth, T a transition metal and M a metal out of the p block of the periodic table) crystallizing in the ZrNiAl structure some results on CePdIn are reported. Transport and magnetic properties and specific heat were investigated as functions of temperature. An antiferromagnetic transition at 1.65 K shows up in the specific heat as a maximum and in the resistivity as a distinct change of slope. Other salient features are the occurrence of two maxima in resistivity, a huge anomalous Hall effect and a high electronic-specific-heat coefficient of 123 mJ/mole K2, reminiscent of low Tsf spin-fluctuation systems. The isostructural compound LaPdIn becomes superconducting at 1.6 K.

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