title: Tailoring Josephson coupling through superconductivity-induced nonequilibrium.
abstract: The distinctive quasiparticle distribution existing under nonequilibrium in a superconductor-insulator-normal metal-insulator-superconductor mesoscopic line is proposed as a novel tool to control the supercurrent intensity in a long Josephson weak link. We present a description of this system in the framework of the diffusive-limit quasiclassical Green-function theory and take into account the effects of inelastic scattering with arbitrary strength. Supercurrent enhancement and suppression, including a marked transition to a pi junction, are striking features leading to a fully tunable structure.
authors.affiliation: NEST-INFM & Scuola Normale Superiore, I-56126 Pisa, Italy. giazotto@sns.it
authors.forename: F
authors.initials: F
authors.lastname: Giazotto
authors.forename: T T
authors.initials: TT
authors.lastname: Heikkilä
authors.forename: F
authors.initials: F
authors.lastname: Taddei
authors.forename: Rosario
authors.initials: R
authors.lastname: Fazio
authors.forename: J P
authors.initials: JP
authors.lastname: Pekola
authors.forename: F
authors.initials: F
authors.lastname: Beltram