Fig. 2
Spin blockade in DQDs. a Schematic presentation of PSB for a hole DQD. Transport is blocked for the transition (1, 1) → (2, 0) (left panel) due to the Pauli exclusion principle and can be lifted by reversing the applied bias voltage (right panel). b Bias triangles exhibiting PSB at negative bias voltages (left). Reversing the bias results in an enhancement of the baseline current (right). c Comparison of the current from two line cuts along the detuning axis for positive (green triangles, solid line) and negative (blue squares, dotted line) bias voltages. The positions where the line cuts were taken are indicated by white dashed lines in b. d Dependence of the leakage current at zero detuning for an out-of-plane magnetic field and for a bias voltage of −2 mV
