Probing the dynamics of Andreev states in a coherent Normal/Superconducting ring

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Chiodi, F. Ferrier, M. Tikhonov, K. Virtanen, P. Heikkilä, T.T. Feigelman, M. Guéron, S. Bouchiat, H. 2017-05-11T08:20:48Z 2017-05-11T08:20:48Z 2011
dc.identifier.citation Chiodi , F , Ferrier , M , Tikhonov , K , Virtanen , P , Heikkilä , T T , Feigelman , M , Guéron , S & Bouchiat , H 2011 , ' Probing the dynamics of Andreev states in a coherent Normal/Superconducting ring ' SCIENTIFIC REPORTS , vol 1 , 3 , pp. 1-6 . DOI: 10.1038/srep00003 en
dc.identifier.issn 2045-2322
dc.identifier.other PURE UUID: 6913cd77-1dbf-4c79-b42c-bddf05db999d
dc.identifier.other PURE ITEMURL:
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dc.description.abstract The supercurrent that establishes between two superconductors connected through a normal N mesoscopic link is carried by quasiparticule states localized within the link, the “Andreev bound states (ABS)”. Whereas the dc properties of this supercurrent in SNS junctions are now well understood, its dynamical properties are still an unresolved issue. In this letter we probe this dynamics by inductively coupling an NS ring to a multimode superconducting resonator, thereby implementing both a phase bias and current detection at high frequency. Whereas at very low temperatures we essentially measure the phase derivative of the supercurrent, at higher temperature we find a surprisingly strong frequency dependence in the current response of the ring: the ABS do not follow adiabatically the phase modulation. This experiment also illustrates a new tool to probe the fundamental time scales of phase coherent systems that are decoupled from macroscopic normal contacts and thermal baths. en
dc.format.extent 1-6
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries SCIENTIFIC REPORTS en
dc.relation.ispartofseries Volume 1 en
dc.rights openAccess en
dc.subject.other 114 Physical sciences en
dc.subject.other 221 Nanotechnology en
dc.subject.other 214 Mechanical engineering en
dc.subject.other 218 Environmental engineering en
dc.title Probing the dynamics of Andreev states in a coherent Normal/Superconducting ring en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.subject.keyword electronic materials and devices
dc.subject.keyword nanotechnology
dc.subject.keyword quantum physics
dc.subject.keyword superconductivity
dc.subject.keyword 114 Physical sciences
dc.subject.keyword 221 Nanotechnology
dc.subject.keyword 214 Mechanical engineering
dc.subject.keyword 218 Environmental engineering
dc.identifier.urn URN:NBN:fi:aalto-201705113956
dc.identifier.doi 10.1038/srep00003
dc.type.version publishedVersion

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