Fast switching current detection at low critical currents

Details Fast switching current detection at low critical currents Fast switching current detection at low critical currents

2004-03-18

arxiv.org/abs/cond-mat/0403467v2

Physics

Condensed Matter

Superconductivity

Changed abstract Added reference 10

Scientific paper

A pulse-and-hold technique is used to measure the switching of small critical current Josephson junctions. This technique allows one to achieve a good binary detection and therefore measure switching probabilities. The technique overcomes limitations on simple square pulses and allows for the measurement of junctions with critical currents of the order of 10nA with bias pulses of the order of 100ns. A correlation analysis of the switching events is performed to show how the switching probability depends on the wait time between repeated bias pulses.

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