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

The quasiparticle energy spectra of the KHM from the direction Γ(π3,π3)K(2π3,2π3)M(π3,2π3) for NN electron hopping but with NNN hole hopping, the blue dashed line denotes the Fermi energy level, where the parameters are t = 1, t1/t = 0.3, nc = 0.9, JK = 2.5.