Fig. 5: Behavior of the device SJ1 at high currents and bias.
From: Josephson current mediated by ballistic topological states in Bi2Te2.3Se0.7 single nanocrystals
a I(V) curves (blue and red lines) acquired at 700 mK for the two opposite directions of the current sweep. The corresponding differential resistance dV/dI(V) curves (at the right) shows step-like jumps separated by sharp peaks. Unlike other peaks, the one at ~±6 μA shows no hysteresis (the event is also marked by red and blue circles and arrows on I(V)). b Temperature evolution of the differential resistance dV/dI(V) spectra. Red and blue lines follow the temperature evolution of the peaks. c Evolution of the differential resistance in the magnetic field (for the two opposite directions of the field sweep). Hysteretic peaks evolve “chaotically” yet deterministically; the nonhysteretic peak shows a completely different dome-like smooth evolution.
