Fig. 3: Gate dependence of CPR. | npj Quantum Materials

Fig. 3: Gate dependence of CPR.

From: Highly skewed current–phase relation in superconductor–topological insulator–superconductor Josephson junctions

Fig. 3

a The CPR measured in sample B at T = 20 mK for different Vg’s. Curves are shifted vertically for clarity. Dashed red and black curves are theoretically calculated CPR with chemical potential μ‘ = 0 and 50 meV, respectively. b The total harmonic distortion THD of the CPR as a function of Vg for samples A (red) and B (blue) at T = 20 mK. Inset: two-terminal resistance R of the SQUID in sample B (containing the parallel contribution of the TI JJ resistance and the REF JJ resistance) vs. Vg at T ~ 8 K above the critical temperature of Nb electrodes (T > TCNb ~ 7 K).

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