Figure 5: Dynamical Coulomb blockade.
From: Sensing the quantum limit in scanning tunnelling spectroscopy
(a) Differential conductance spectrum in the normal state after applying a 10 mT magnetic field to quench superconductivity in the tip and the sample. The conductance dip at zero bias clearly indicates a DCB as a result of charge quantization effects. The quasiparticle spectrum of the superconducting Al tip and sample in (b) and the Josephson spectrum in (c) were fitted with the same P(E)-function as used in (a).
