μSR in Ce1-xLaxAl3: Anisotropic Kondo effect?

D. E. MacLaughlin*, M. S. Rose, Ben-Li Young, O. O. Bernal, R. H. Heffner, G. J. Nieuwenhuys, R. Pietri, B. Andraka

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Zero-field μ+ spin relaxation experiments in the heavy-fermion alloys Ce1-xLaxAl3, x = 0 and 0.2, examine a recent proposal that the system exhibits a strong anisotropic Kondo effect. We resolve a damped oscillatory component for both La concentrations, indicative of disordered antiferromagnetism. For x = 0.2 the oscillation frequency decreases smoothly with increasing temperature, and vanishes at the specific heat anomaly temperature T* ≈ 2.2 K. Our results are consistent with the view that T* is due to a magnetic transition rather than anisotropic Kondo behavior.

Original languageEnglish
Pages (from-to)387-389
Number of pages3
JournalPhysica B: Condensed Matter
Volume326
Issue number1-4
DOIs
StatePublished - 1 Feb 2003

Keywords

  • Anisotropic Kondo effect
  • CeLaAl
  • Heavy-fermion systems

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