Doniach phase diagram for the Kondo lattice model on square and triangular lattices

Using advanced many-body techniques, the intricate relationship between Ruderman-Kittel-Kasuya-Yosida and Kondo couplings in Kondo lattice models on square and triangular lattices is elucidated, revealing the significant influence of geometric frustration on the formation of distinct magnetic orders and the evolution of these systems upon doping.