title: Measurement of the current-phase relation of superconducting atomic contacts.
abstract: We have probed the current-phase relation of an atomic contact placed with a tunnel junction in a small superconducting loop. The measurements are in quantitative agreement with the predictions of a resistively shunted SQUID model in which the Josephson coupling of the contact is calculated using the independently determined transmissions of its conduction channels.
authors.affiliation: Quantronics group, Service de Physique de l'Etat Condensé (CNRS URA 2464) DSM/DRECAM, CEA-Saclay, 91191 Gif-sur-Yvette Cedex, France.
authors.forename: M L
authors.initials: ML
authors.lastname: Della Rocca
authors.forename: M
authors.initials: M
authors.lastname: Chauvin
authors.forename: B
authors.initials: B
authors.lastname: Huard
authors.forename: H
authors.initials: H
authors.lastname: Pothier
authors.forename: D
authors.initials: D
authors.lastname: Esteve
authors.forename: C
authors.initials: C
authors.lastname: Urbina