Quasiparticle recombination and 2Δ-phonon-trapping in superconducting tunnelling junctions

Wolfgang Eisenmenger, Kurt Lassmann, Hans-Joachim Trumpp & Richard Krauß
The experimental recombination lifetime τeff of quasiparticles in superconducting films in general exceeds the intrinsic recombination lifetime τR by phonon trapping. On the basis of geometric acoustic propagation and reabsorption of phonons emitted in quasiparticle recombination, τeff is calculated as a function of film thickness d taking into account longitudinal and transverse phonon reabsorption, bulk loss processes and acoustical phonon transmission into the substrate. With increasing thickness d three characteristic ranges are found: range 1...
This data repository is not currently reporting usage information. For information on how your repository can submit usage information, please see our documentation.