Abstract
We have found direct evidence for the dynamical instability of Pr, which could be observed in Pr0.015 Pd by inelastic neutron scattering, and as such is first ever to be found for Pr ions. Crystalfield analysis of the measured dynamic susceptibility reveals that the spin instability is similar to that of Ce Kondo systems. We show that the previously observed resistivity increase belowT=25 K is a true Kondo effect and is not related to crystal field effects. We conclude that Pr diluted in Pd is a Kondo system withT K =2.5 K.
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Walter, U., Slebarski, A. Kondo instability of Pr impurities in Pd. Z. Physik B - Condensed Matter 76, 507–511 (1989). https://doi.org/10.1007/BF01307902
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DOI: https://doi.org/10.1007/BF01307902