Figure 4: The angular dependent Berry phase ΦB at different magnetic field regimes.
From: Landau level splitting in Cd3As2 under high magnetic fields
The Berry phase was fitted in the regimes of (a) 5–7 T (corresponding to nineth to eleventh Landau levels); (b) 7–10 T (seventh to nineth Landau levels); and (c) 10–15 T (fifth to seventh Landau levels). The Berry phase develops an angular dependence at high magnetic fields, suggesting a field-induced phase transition. The error bars were generated from the linear fitting process in the Landau fan diagrams.
