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Magnetic ordering, Kondo effect and superconductivity in Ce2-x(La, Y)xRhSi3

Kausik Sengupta·S. Rayaprol·E. V. Sampathkumaran
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Abstract

The influence of positive and negative chemical pressure on the magnetic behavior of the compound, Ce2RhSi3, crystallizing in a AlB2-derived hexagonal structure and ordering antiferromagnetically around (TN = 7 K), is investigated by studying electrical resistivity (rho) and magnetic susceptibility (chi) behavior of the solid solutions formed by gradual substitution of La/ Y for Ce. While typical features associated with a transformation from the Kondo-lattice to single-ion Kondo effect are seen in the low temperature rho data of both the solid solutions, there are profound differences in their behavior at higher temperatures. In particular, Y is apparently more effective in enhancing the Kondo temperature. La2RhSi3 is found to be superconducting below 3 K.

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Kausik Sengupta, S. Rayaprol, E. V. Sampathkumaran. 2003-09-30. Magnetic ordering, Kondo effect and superconductivity in Ce2-x(La, Y)xRhSi3. https://arxiv.org/abs/cond-mat/0309701

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