Evidence of the disorder-independent electron-phonon scattering time in thin NbN films
Evidence of the disorder-independent electron-phonon scattering time in thin NbN films
We report on experimental study of the effect of disorder on electronic parameters and inelastic scattering mechanisms in ultrathin superconducting NbN films, which are commonly used in single-photon detectors. An increase in disorder in the studied 2.5 nm thick NbN films characterized by Ioffe-Regel parameter from 6.3 to 1.6 is …