Figure 4
From: Domain wall of a ferromagnet on a three-dimensional topological insulator
Electron density distribution of the optimized domain wall structure for various chemical potential for (a) J3 = 0 and (b) J3 = J0.
Electrons (holes) are localized at the zero-energy states due to the magnetic domain wall for μ > 0 (μ < 0). The numbers ±1, ±3 indicate the electron number measured from the half-filling. The horizontal axis is the x coordinate.
