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

Eugene Goremychkin; Ray Osborn; Brian Rainford; Amir Murani

doi:10.1103/PhysRevLett.84.2211

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

Strongly Correlated Electrons 2009-10-31 v1

Authors: Eugene Goremychkin , Ray Osborn , Brian Rainford , Amir Murani

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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.

Keywords

Kondo effect anisotropic neutron scattering heavy fermion Ce0.8La0.2Al3

Cite

@article{arxiv.cond-mat/9909438,
  title  = {Evidence for Anisotropic Kondo Behavior in Ce0.8La0.2Al3},
  author = {Eugene Goremychkin and Ray Osborn and Brian Rainford and Amir Murani},
  journal= {arXiv preprint arXiv:cond-mat/9909438},
  year   = {2009}
}

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