Measurement of the current-phase relation of superconducting atomic contacts

Details Measurement of the current-phase relation of superconducting atomic contacts Measurement of the current-phase relation of superconducting atomic contacts

2007-08-03

arxiv.org/abs/0708.0515v2

Physical Review Letters 99, 12 (2007) 127005

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

to be published in Physical Review Letters

Scientific paper

10.1103/PhysRevLett.99.127005

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.

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