ARPES investigation of the electronic properties of PdCoO$_{2}$

The triangular-lattice layered cobaltates have emerged as an exciting new correlated electron system.~ Although tremendous progress has been made with Sodium Cobaltate (Na$_{x}$CoO$_{2})$ there still remain disputes, most notably, the precise Fermi surface topology.~ In order to gain another perspective, we have studied a related compound, Palladium Cobaltate (PdCoO$_{2})$. This is a chemically stable metallic oxide that can be prepared with very high purity, allowing us to study a clean system that lacks the complications introduced by doping in Na$_{x}$CoO$_{2}$. We present the first ARPES measurements on PdCoO$_{2}$, focusing on determining the Fermi surface topology, comparing observed band structure to theory, and making connections with bulk measurements.