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

doi:10.1103/PhysRevLett.89.147201

Magnetic Correlations and the Anisotropic Kondo Effect in Ce1-xLaxAl3

Strongly Correlated Electrons 2009-11-07 v1

Authors: 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.

Keywords

heavy fermion magnetic correlations anisotropic Kondo effect muon spin rotation neutron scattering hidden order

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@article{arxiv.cond-mat/0112005,
  title  = {Magnetic Correlations and the Anisotropic Kondo Effect in Ce1-xLaxAl3},
  author = {E. A. Goremychkin and R. Osborn and B. D. Rainford and T. A. Costi and A. P. Murani and C. A. Scott and P. J. C. King},
  journal= {arXiv preprint arXiv:cond-mat/0112005},
  year   = {2009}
}

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Magnetic Correlations and the Anisotropic Kondo Effect in Ce1-xLaxAl3

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