Figure 2.

Quantum dot behavior at low temperature (9 K). Differential conductance dI/dV maps as a function of V_DS and V_G on a logarithmic scale recorded on (a) device 1 and (b) device 4. Dashed white lines guide the Coulomb diamond edges, and the height of the Coulomb diamonds are labeled as E_add.. (c) Overview graphs of the corresponding E_add. as a function of the Coulomb diamond number extracted from devices 1 and 4. (d) Histogram of the fitted coupling strength Γ of all 17 crossing points obtained from the Breit–Wigner (BW) model fittings.