Breakdown of heavy quasiparticles in a honeycomb Kondo lattice: A quantum Monte Carlo study

Marcin Raczkowski, Bimla Danu, Fakher F. Assaad

We show that for the half-filled Kondo lattice model on the honeycomb lattice a Kondo breakdown occurs at small Kondo couplings $J_k$ within the magnetically ordered phase. Our con…