Figure 1: Crystal structure of PdCoO2 and configuration of electrical contacts.
From: Interplanar coupling-dependent magnetoresistivity in high-purity layered metals
(a) Crystallographic structure of the delafossite PdCoO2 with Pd, Co and O atoms shown in green, blue and red, respectively. (b) Configuration of contacts for measuring the interplanar longitudinal resistivity (ρc), showing concentric contacts at the top and at the bottom surface of each hexagonal platelet-like crystal. (c) Configuration of contacts for measuring the in-plane longitudinal resistivity 
for currents flowing along the 
axis and fields applied along the same direction.
