Possible Pressure Driven Quantum Critical Point in CaCo$_{2}$P$_{2}$

We performed electrical resistivity measurements under pressures up to a maximum of $\approx $ 5 GPa for the d-electron antiferromagnet CaCo$_{2}$P$_{2}$,$_{\, }$where we find that the N\'{e}el temperature (T$_{N} \quad =$ 106 K) is rapidly suppressed towards zero near 1.4 GPa. In the vicinity of the suppressed magnetic state, the Fermi liquid coefficient of the electrical resistivity A increases abruptly, suggesting a divergence in the effective mass of the charge carrier quasiparticles. In addition, we find that the residual resistivity $\rho_{0}$ increases abruptly at 1.4 GPa. For P \textgreater 1.4 GPa, we also observe a broad hump in $\partial \rho $/$\partial $T at a temperature T*, which increases with increasing P. We will compare these measurements to expectations for prototypical f-electron quantum critical point (QCP) systems (e.g., CeRhIn$_{5}$ and CeRh$_{2}$Si$_{2})$ and the iron arsenide high temperature superconductors (e.g., CaFe$_{2}$As$_{2}$, SrFe$_{2}$As$_{2}$, and BaFe$_{2}$As$_{2})$ and discuss implications for studying a possible d-electron QCP in the absence of superconductivity.