Current-Voltage Measurements and Vortex Dynamics in a Bi2Sr2CaCu2O x Whisker: Observation of the Peak Effect and Calculation of the Critical Current in the Flux Flow Regime with and Without Applied Field

Basit Öğe Kaydı
dc.authoridALTIN, Serdar/0000-0002-4590-907X
dc.authorwosidALTIN, Serdar/H-4880-2014
dc.contributor.authorAltin, Serdar
dc.contributor.authorBernstein, Pierre
dc.date.accessioned2024-08-04T20:37:22Z
dc.date.available2024-08-04T20:37:22Z
dc.date.issued2013
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIn this article, we report current-voltage measurements carried out on a Bi2Sr2CaCu2O (x) whisker in a large temperature range below the critical temperature with and without applied magnetic field. We examine the critical current peak effect and the vortex dynamics at low field. The critical current peak effect consists of the initial increase of the critical current that subsequently decreases as the applied field is increased. For current-voltage measurements, this effect is associated with a change in the current-voltage curves that are typical of the flux flow regime at low fields and resemble flux creep characteristics for higher fields. As a general rule, our observations are consistent with the models that link the peak effect to vortex phase transitions. We calculate the critical current in self-field in the flux flow regime taking into account intervortex forces. We suppose that most vortices are pinned by defects while mobile vortices move through plastic channels between the strongly pinned vortex regions. When an external field is applied, we suggest that the increase in the critical current that is observed is linked to oscillations of the pinned vortices.en_US
dc.identifier.doi10.1007/s10948-012-1730-y
dc.identifier.endpage124en_US
dc.identifier.issn1557-1939
dc.identifier.issn1557-1947
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-84871989486en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage117en_US
dc.identifier.urihttps://doi.org/10.1007/s10948-012-1730-y
dc.identifier.urihttps://hdl.handle.net/11616/95904
dc.identifier.volume26en_US
dc.identifier.wosWOS:000312882500015en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal of Superconductivity and Novel Magnetismen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBi-2212 whiskersen_US
dc.subjectCritical currenten_US
dc.subjectPhase transitionsen_US
dc.titleCurrent-Voltage Measurements and Vortex Dynamics in a Bi2Sr2CaCu2O x Whisker: Observation of the Peak Effect and Calculation of the Critical Current in the Flux Flow Regime with and Without Applied Fielden_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu