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Switching currents limited by single phase slips in one-dimensional superconducting Al nanowires.

dc.contributor.author Li, Peng
dc.contributor.author Wu, Phillip M
dc.contributor.author Bomze, Yuriy
dc.contributor.author Borzenets, Ivan V
dc.contributor.author Finkelstein, Gleb
dc.contributor.author Chang, AM
dc.date.accessioned 2019-12-22T00:42:53Z
dc.date.available 2019-12-22T00:42:53Z
dc.date.issued 2011-09-21
dc.identifier.issn 0031-9007
dc.identifier.issn 1079-7114
dc.identifier.uri https://hdl.handle.net/10161/19626
dc.description.abstract An aluminum nanowire switches from superconducting to normal as the current is increased in an upsweep. The switching current (I(s)) averaged over upsweeps approximately follows the depairing critical current (I(c)) but falls below it. Fluctuations in I(s) exhibit three distinct regions of behaviors and are nonmonotonic in temperature: saturation well below the critical temperature T(c), an increase as T(2/3) at intermediate temperatures, and a rapid decrease close to T(c). Heat dissipation analysis indicates that a single phase slip is able to trigger switching at low and intermediate temperatures, whereby the T(2/3) dependence arises from the thermal activation of a phase slip, while saturation at low temperatures provides striking evidence that the phase slips by macroscopic quantum tunneling.
dc.language eng
dc.publisher American Physical Society (APS)
dc.relation.ispartof Physical review letters
dc.relation.isversionof 10.1103/physrevlett.107.137004
dc.subject Science & Technology
dc.subject Physical Sciences
dc.subject Physics, Multidisciplinary
dc.subject Physics
dc.subject ZERO-VOLTAGE STATE
dc.subject RESISTIVE TRANSITION
dc.subject QUANTUM
dc.subject WIRES
dc.subject JUNCTIONS
dc.title Switching currents limited by single phase slips in one-dimensional superconducting Al nanowires.
dc.type Journal article
duke.contributor.id Finkelstein, Gleb|0271002
duke.contributor.id Chang, AM|0310085
dc.date.updated 2019-12-22T00:42:52Z
pubs.begin-page 137004
pubs.issue 13
pubs.organisational-group Trinity College of Arts & Sciences
pubs.organisational-group Duke
pubs.organisational-group Physics
pubs.organisational-group Duke Institute for Brain Sciences
pubs.organisational-group University Institutes and Centers
pubs.organisational-group Institutes and Provost's Academic Units
pubs.publication-status Published
pubs.volume 107
duke.contributor.orcid Finkelstein, Gleb|0000-0002-0883-0741


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