Evidence for Anisotropic Kondo Behavior in Ce0.8La0.2Al3

Abstract

We have performed an inelastic neutron scattering study of the low energy spin dynamics of the heavy fermion compound Ce0.8La0.2Al3 as a function of temperature and external pressure up to 5 kbar. At temperatures below 3 K, the magnetic response transforms from a quasi-elastic form, common to many heavy fermion systems, to a single well-defined inelastic peak, which is extremely sensitive to external pressure. The scaling of the spin dynamics and the thermodynamic properties are in agreement with the predictions of the anisotropic Kondo model.

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References in corpus (2)

• Equilibrium dynamics of the dissipative two-state system
• Scaling and universality in the anisotropic Kondo model and the dissipative two-state system

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