Fig. 6
From: Phase transitions, Dirac and Weyl semimetal states in Mn1−xGexBi2Te4
Theoretically calculated changes in the dispersion dependencies of bulk states for the FM (a1–a9) and AFM (c1–c6) phases of \(\textrm{Mn}_{1-x} \textrm{Ge}_x \textrm{Bi}_2 \textrm{Te}_4\) with \(x = 0.5\) in the \(\bar{K}\! \varGamma \!Z\) direction of the BZ. The modulation of the SOC strength \(\lambda _\textrm{SOC}\) on the Te and Bi atoms is relative to the initial value, taken as 1. Changes in the contributions of the Te \(p_z\) and Bi \(p_z\) states are shown in red and blue, respectively. (b1–b9) Detailed representation of dispersion dependencies in the region of the intersection of branches of states in the \(\varGamma \!Z\) direction of the BZ for the FM phase and the corresponding shift of the Weyl point with changing SOC strength.
