Extended Data Fig. 2: Quantifying Ising SOC strength ∣λI∣ by quantum oscillations.
From: Twist-programmable superconductivity in spin–orbit-coupled bilayer graphene
a, The same data as the one in Fig. 1h, but without the frequency normalization to show Bsplit. b,c, Experimental (dots) doping-dependent frequency splitting around fν = 1/4 measured at different D fields for a large Ising device (b; ∣λI∣ ≈ 1.4 meV) and a small Ising device (c; ∣λI∣ ≈ 0.4 meV). The dashed lines are Bsplit calculated from single-particle band structure using the corresponding Ising SOC values. The gray dashed line in b corresponds to the frequency splitting at zero displacement field.
