Magnetic phases of the triangular Kondo lattice

The Kondo lattice model (KLM) on the 2-dimensional triangular lattice is studied by bond fermion theory.Three-sublattice Néel order (AF) and partial Kondo screening (PKS) are considered as possible phases of themodel. We find that near half filling and at moderate interaction strength, AF and PKS are energetically close andfavored compared to the paramagnetic phase. We discuss the quasiparticle band structure and Fermi surface ofthe different phases. As is the case for the KLM on the square lattice, both the AF and the PKS phase can befurther subdivided into phases with the same symmetry, but different Fermi surface topology