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Measurement of the Current-Phase Relation of Superconducting Atomic Contacts

2007; American Physical Society; Volume: 99; Issue: 12 Linguagem: Inglês

10.1103/physrevlett.99.127005

1092-0145

Maria Luisa Della Rocca, M. Chauvin, Benjamin Huard, H. Pothier, D. Estève, C. Urbina,

Physics of Superconductivity and Magnetism

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.