A method of forming an interconnect for an integrated circuit includes: identifying an interconnect barrier material, identifying a plurality of potential dopant elements, creating an ensemble of potential barrier structures including the interconnect barrier material doped at a plurality of doping positions and a plurality of doping amounts for each of the plurality of potential dopant elements, calculating a density of states for each of the barrier structures of the ensemble, selecting a dopant element and a doping amount based on the density of states, and depositing a barrier layer including an alloy, the alloy including the interconnect barrier material and the selected dopant element at the selected doping amount.