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Magnetic Correlations and the Anisotropic Kondo Effect in Ce1-xLaxAl3

E. A. Goremychkin·R. Osborn·B. D. Rainford·T. A. Costi·A. P. Murani·C. A. Scott·P. J. C. King
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Abstract

By combining the results of muon spin rotation and inelastic neutron scattering in the heavy fermion compounds Ce1-xLaxAl3 (0.0 <= x <= 0.2), we show that static magnetic correlations are suppressed above a characteristic temperature, T*, by electronic dissipation rather than by thermal disorder. Below T*, an energy gap opens in the single-ion magnetic response in agreement with the predictions of the Anisotropic Kondo Model. Scaling arguments suggest that similar behavior may underlie the "hidden order" in URu2Si2.

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E. A. Goremychkin, R. Osborn, B. D. Rainford, T. A. Costi, A. P. Murani, C. A. Scott, P. J. C. King. 2001-11-30. Magnetic Correlations and the Anisotropic Kondo Effect in Ce1-xLaxAl3. https://doi.org/10.1103/physrevlett.89.147201

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