Abstract
We report on specific heat, magnetic susceptibility, and resistivity measurements on the compound for various concentrations ranging from the stoichiometric system with to the dilute limit . Our data reveal single-ion scaling with the Ce concentration and the largest ever recorded value of the electronic specific heat at for the stoichiometric compound without any trace of magnetic order. While in the doped samples increases logarithmically below 3 K down to 50 mK, their magnetic susceptibility behaves Fermi-liquid-like below 1 K. These properties make the compound a unique system on the borderline between Fermi-liquid and non-Fermi-liquid physics.
- Received 19 February 2004
DOI:https://doi.org/10.1103/PhysRevLett.93.216404
©2004 American Physical Society