Fig. 2
From: Anomalous quantization trajectory and parity anomaly in Co cluster decorated BiSbTeSe2 nanodevices
Renormalization group flow diagram analysis with the result of quantization trajectory of single Dirac channel. a Renormalization group flow diagram (RGFD) analysis in (σ xy, σ xx) space based on the data measured between −3 and −12 T with the step being −1 T for the sample before the Co deposition (sample A′) at 1.8 K. The converging points (CVPs), the local minimum with a vanishing σ xx and plateau σ xy, indicate complete quantum Hall (QH) filling. b We note two sets of CVPs, pointing to σ xy of 0 and −e 2 /h. The dashed line marks the σ xy minimum. c RGFD analysis in (σ xy, σ xx) space based on the data measured between −3 and −12 T with a step of −1 T for the Co-decorated sample (sample A). Note the anomalous RGFD trajectory is characteristic in this system. d The CVP trajectories for sample A. The converging trajectories are clearly different. The dashed line marks the σ xy minimum. e The 3/2 QH plateau observed at −7 T and 1.8 K, while scanning the gate voltage. f The CVPs of the −1 plateau for the Cu clusters decorated BSTS (sample D) and the Co clusters decorated BSTS (sample A). Sample D does not show the anomalous trajectory of sample A
