10.18419/opus-4985
Fuchs, Jürgen
Epperlein, Peter W.
Welte, Michael
Eisenmenger, Wolfgang
Energy gap reduction in superconducting tin films by quasiparticle injection
Universität Stuttgart
1977
Supraleiter , Quasiteilchen
530
Universität Stuttgart
Universität Stuttgart
2010-10-18
2016-03-31
2010-10-18
2016-03-31
1977
en
article
347886906
http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-56355
http://elib.uni-stuttgart.de/handle/11682/5002
In Sn-/-Sn-/-Pb tunneling structures the energy gap ΔSn of Sn is reduced by quasiparticle injection via single-particle tunneling between the Sn films. ΔSn as function of the quasiparticle density is probed by the Pb contact and found in agreement with the theory of Owen and Scalapino. An instability of the energy gap of Sn is observed at the critical gap reduction ratio predicted by this theory for a first-order phase transition.