Fig. 10

Calculated potential field in 2DEG from 40 mV potential applied at surface gates labelled 1, 2, 3 and 4 (marked by orange solid lines). The green dotted box denotes the area simulated in calculations. The yellow dashed lines indicate where 300 nm wide semi-infinite leads were attached. The overlaid spin-projected density plot shows the probability density of an electron with a Fermi energy of 7 meV injected at \(\hbox {L}_{{1}}\) and collected at \(\hbox {L}_{{2}}\) under an out-of-plane magnetic field of 0.0957 T. The density plot has the same colour scheme as in Fig. 2