Lifshitz transition in triangular lattice Kondo-Heisenberg model
Zhang Lan1, Zhong Yin1, †, Luo Hong-Gang1, 2
       

The FS evolution of the KHM versus the Heisenberg interaction JH for NN electron hopping but with NNN hole hopping, the first Brillouin zone of the triangular lattice is marked by the black line, where the parameters are t = 1, t1/t = 0.3, nc = 0.9, JK = 2.5.