Two Energy Scales in CePd3

We report anomalies in the temperature- and pressure-dependent electrical resistivity of Ce${\mathrm{Pd}}_3$ and its alloys that occur on a temperature scale ≈ 40 K, which correlates with the scale for the neutron-scattering from-factor ($5d$ susceptibility) anomaly. We outline an argument that the reported effects demonstrate the existence of an energy scale $T_{\mathrm{coh}}$ [related to the single-ion spinfluctuation scale $T_{\mathrm{sf}}$ by a factor $\frac{1}{\mathrm{}(2J+1)\mathrm{}}$] over which coherence develops among spin fluctuations on different sites.