Competition of Magnetism and Kondo Effect in (Ce,Y)Pd2Si2 compounds
CePd2Si2, one of the numerous RE ternaries crystallizing with the ThCr2Si2-type structure has recently been shown to order antiferromagnetically at TN = 10 K with a reduced ordered moment of 0.62μB and to present Kondo lattice characteristics1−3. Kondo systems are known to be sensitive to volume effects resulting either from chemical pressure (alloying effects) or applied pressure : for CePd2Si2 resistivity measurements under hydrostatic pressure proved the importance of Kondo spin compensation effects4. In this regard, with a relative volume decrease of about 4% the CexY1−xPd2Si2 (0 ≤ x ≤ 1) system appeared us as well suited to study the interplay between Kondo effect and magnetic order and we present here results of magnetic susceptibility, resistivity and specific heat measurements.
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