Resistivity Anisotropy in Single Crystals of CaCo$_{1.86}$As$_2$*

In-plane and inter-plane resistivity was measured in single crystals of type A antiferromagnet CaCo$_{2-x}$As$_2$ ($x=$ 0.14). Clear anomalies in the temperature dependent resistivity are observed at the magnetic ordering at $T_N \approx$50~K. The transition shifts to lower temperatures upon application of 9 T magnetic field both along tetragonal (001) axis, $H \parallel c$, and transverse to it, $H \bot c$. The temperature – - magnetic field phase diagrams determined from the resistivity measurements are in good agreement with magnetization measurements [1]. No additional anomalies are found at the spin-flop transition in the compound, suggesting that the direction of the spin does not play an appreciable role in the spin-disorder scattering in this compound. [1] V.~K.~Anand {\it et al.} Phys. Rev B {\bf 89}, 214409 (2014).