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27 April 2024 |
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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
; | | Date: |
11 Jul 2001 | | Subject: | Strongly Correlated Electrons | cond-mat.str-el | | Affiliation: | Institute of Physics, Zagreb), K.-D. Schotte (Institut fur Theoretische Physik, Freie Universitat Berlin), C. Geibel and F. Steglich (Max-Planck Institute for Chemical Physics of Solids, Dresden | | 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. | | Source: | arXiv, cond-mat/0107227 | | Services: | Forum | Review | PDF | Favorites | |
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