Extended Data Fig. 3: Variation of a degeneracy with applied magnetic field.

a-h, PESOS maps taken at various values of B0 field in Device D, with a (1,1) charge configuration, indicating that the characteristic of a degeneracy point may be tuned. Techniques using gate-bias voltages (such as in Ext Data Fig. 1) may prove more scalable however, and are an avenue for future research.