Evidence for Single-Vortex Pinning and Unpinning Events in Superfluid 4He

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorHakonen, Pertti J.
dc.contributor.authorAvenel, O.
dc.contributor.authorVaroquaux, E.
dc.contributor.departmentTeknillisen fysiikan laitosfi
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.schoolPerustieteiden korkeakoulufi
dc.contributor.schoolSchool of Scienceen
dc.date.accessioned2015-09-11T09:01:48Z
dc.date.available2015-09-11T09:01:48Z
dc.date.issued1998
dc.description.abstractWe have observed two critical velocity levels for phase slips in superfluid 4He at temperatures between 14 and 44 mK, due to microparticles formed in the cell at low temperature. We interpret these observations as evidence for pinning and unpinning events of single vortices of nanometric size. From a study of the lifetime and unpinning velocities of the pinned vortices, we are led to conclude that unpinning takes place by quantum tunneling.en
dc.description.versionPeer revieweden
dc.format.extent3451-3454
dc.format.mimetypeapplication/pdfen
dc.identifier.citationHakonen, Pertti J. & Avenel, O. & Varoquaux, E. 1998. Evidence for Single-Vortex Pinning and Unpinning Events in Superfluid 4He. Physical Review Letters. Volume 81, Issue 16. 3451-3454. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.81.3451en
dc.identifier.doi10.1103/physrevlett.81.3451
dc.identifier.issn0031-9007 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/17648
dc.identifier.urnURN:NBN:fi:aalto-201509104253
dc.language.isoenen
dc.publisherAmerican Physical Society (APS)en
dc.relation.ispartofseriesPhysical Review Lettersen
dc.relation.ispartofseriesVolume 81, Issue 16
dc.rights© 1998 American Physical Society (APS). This is the accepted version of the following article: Hakonen, Pertti J. & Avenel, O. & Varoquaux, E. 1998. Evidence for Single-Vortex Pinning and Unpinning Events in Superfluid 4He. Physical Review Letters. Volume 81, Issue 16. 3451-3454. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.81.3451, which has been published in final form at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.81.3451.en
dc.rights.holderAmerican Physical Society (APS)
dc.subject.keywordheliumen
dc.subject.keywordflowen
dc.subject.otherPhysicsen
dc.titleEvidence for Single-Vortex Pinning and Unpinning Events in Superfluid 4Heen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionFinal published versionen

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