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.
KeywordsHeavy Fermion Magnetic Phase Transition Kondo Effect Specific Heat Measurement Kondo Lattice
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- 1.V. Murgai, S. Raaen, L. C. Gupta and R. D. Parks in Valence Instabilities, P. Wachter and H. Boppart ed., North-Holland, (1982), p. 537.Google Scholar
- 7.N. Kawakami and A. Okijii in Theory of Heavy Fermions and Valence Fluctuations, T. Kasuya and T. Saso ed., Springer Verlag, (1985), p. 57Google Scholar
- 7.A. C. Hewson, D. M. Newns, J. W. Rasul, N. Read, H. U. Desgranges and P. Strange, Okijii in Theory of Heavy Fermions and Valence Fluctuations, T. Kasuya and T. Saso ed., Springer Verlag p. 134.Google Scholar
- 8.M. J. Besnus, P. Lehmann and A. Meyer, J. Mag.Mag. Mat. 63–64 (1987) in press.Google Scholar