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Kondo effect in Ce(x)La(1-x)Cu(2.05)Si(2) intermetallics

I. Aviani·M. Miljak·V. Zlatic·K. -D. Schotte·C. Geibel·F. Steglich
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Abstract

The magnetic susceptibility and susceptibility anisotropy of the quasi-binary alloy system Ce(x)La(1-x)Cu(2.05)Si(2) have been studied for low concentration of Ce ions. The single-ion desc ription is found to be valid for x < 0.1. The experimental results are discussed in terms of t he degenerate Coqblin-Schrieffer model with a crystalline electric field splitting Delta = 330 K. The properties of the model, obtained by combining the lowest-order scaling and the pertur bation theory, provide a satisfactory description of the experimental data down to 30 K. The e xperimental results between 20 K and 2 K are explained by the exact solution of the Kondo mode l for an effective doublet.

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I. Aviani, M. Miljak, V. Zlatic, K. -D. Schotte, C. Geibel, F. Steglich. 2001-07-11. Kondo effect in Ce(x)La(1-x)Cu(2.05)Si(2) intermetallics. https://doi.org/10.1103/physrevb.64.184438

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