Abstract
It is shown by the Wilson numerical renormalization group approach that anomalous local Fermi liquid, in which the static magnetic susceptibility remains uncorrelated value while the NMR relaxation rate is enhanced in proportional to the square of mass enhancement factor, appears in strongly correlated impurity with f2-crystalline-electric-field singlet configuration. The difference of the behaviors between static magnetic susceptibility and the NMR relaxation rate is explained by the difference of the local Fermi liquid effect, which arises from the anisotropy of the crystalline-electric-field effect in f2-configuration. As a result, the Korringa–Shiba relation is apparently broken in this situation. These behaviors well simulate the anomalous properties observed in UPt3 which exhibits unenhanced Knight shift and enhanced relaxation rate of NMR.
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