Microscopic interpretation of the Dynes formula for the tunneling density of states
Microscopic interpretation of the Dynes formula for the tunneling density of states
Excellent fits of the tunneling density of states in disordered superconductors can be often achieved making use of the phenomenological Dynes formula. However, no consistent derivation of this formula has been available so far. The Dynes formula can be interpreted by the simplest causal frequency-dependent gap function $\mathrm{\ensuremath{\Delta}}(\ensuremath{\omega})$ with a …