Fast Switching Current Detection at low Critical Currents
2005 (English)In: Realizing Controllable Quantum States - MESOSCOPIC SUPERCONDUCTIVITY AND SPINTRONICS, 2005, 255-262 p.Conference paper (Refereed)
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.
Place, publisher, year, edition, pages
2005. 255-262 p.
tunnel-junctions, circuit, state
IdentifiersURN: urn:nbn:se:kth:diva-6278ISI: 000234363700039ISBN: 981-256-468-3OAI: oai:DiVA.org:kth-6278DiVA: diva2:10951
3rd International Symposium on Mesoscopic Superconductivity and Spintronics Atsugi City, JAPAN, MAR 01-04, 2004
QC 201009242006-10-232006-10-232010-09-28Bibliographically approved