Fig. 4: CAR and ECT at finite magnetic field.
From: Triplet correlations in Cooper pair splitters realized in a two-dimensional electron gas
a A schematic showing the coordinate system of the applied magnetic field with respect to the device. b Measurement of Icorr for CAR (top) and ECT (bottom) with B∥By = 150 mT and VABS = −220 mV. Lower biases (∣VL∣, ∣VR∣ = 70 μV) are applied to keep the bias window below any sub-gap states, whose energies are pulled down by the finite magnetic field (Fig. S1). Equal-spin CAR and opposite-spin ECT are fully suppressed (circled). c Measurement of Icorr with B∥Bz = 150 mT. The blockades in (b) have been clearly lifted. d Angle-dependence of 〈Icorr〉 for the different spin channels for a full rotation of the magnetic field in the y-z plane. The (−, +) and (+, +) bias configurations are used for ECT and CAR respectively. Each data point represents a single charge stability diagram for a specific spin channel. The data extraction procedure is described in Fig. S7. e The calculated spin cross-correlation (as defined in the text) of CAR and ECT, derived from (d).
