Fig. 3
From: Anomalous quantization trajectory and parity anomaly in Co cluster decorated BiSbTeSe2 nanodevices
The delayed Landau level hybridization model. a, c, e and b, d, f schematically show the Landau Level (LL) diagram before/after Co cluster deposition, respectively, during Hall quantization. The orange dashed lines indicate the Fermi energy. Under a magnetic field, the deposited Co clusters induce a Zeeman-like gap in the Dirac cone of the top surface. The zeroth LL is shifted to the top of the Zeeman gap (b), while the bottom surface is unchanged, similar to the case for clean devices (a). This makes no significant difference at a sufficiently high field (c, d). At a medium field, it leads to the observed anomalous quantization trajectory (e, f). The anomalous RGFD trajectory (Fig. 2c) is the result of the delayed LL hybridization (DLLH) of the top surface (f)
