title: Anomalous proximity effect in an inhomogeneous disordered superconductor.
abstract: By combining very low temperature scanning tunneling microscopy and spectroscopy on a TiN film we have observed a nonuniform state comprising of superconducting (S) and normal (N) areas. The local density of states displays a spatial dependence between S and N different from the usual proximity effect. We conclude that mesoscopic fluctuations might play a major role in accordance with recent theories describing superconductor-normal-metal quantum transition.
authors.affiliation: CEA-DSM-DRFMC-SPSMS, CEA Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France.
authors.forename: W
authors.initials: W
authors.lastname: Escoffier
authors.forename: C
authors.initials: C
authors.lastname: Chapelier
authors.forename: N
authors.initials: N
authors.lastname: Hadacek
authors.forename: J-C
authors.initials: JC
authors.lastname: Villégier