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.