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Macroscopic quantum tunneling and retrapping processes in moderately damped YBaCuO Josephson junctions

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dc.contributor.author Massarotti, D.
dc.contributor.author Longobardi, L.
dc.contributor.author Galletti, L.
dc.contributor.author Stornaiuolo, D.
dc.contributor.author Rotoli, G.
dc.contributor.author Tafuri, F.
dc.date.accessioned 2017-05-29T13:57:00Z
dc.date.available 2017-05-29T13:57:00Z
dc.date.issued 2013
dc.identifier.citation Macroscopic quantum tunneling and retrapping processes in moderately damped YBaCuO Josephson junctions / D. Massarotti, L. Longobardi, L. Galletti, D. Stornaiuolo, G. Rotoli, F. Tafuri // Физика низких температур. — 2013. — Т. 39, № 3. — С. 378–383. — Бібліогр.: 37 назв. — англ. uk_UA
dc.identifier.issn 0132-6414
dc.identifier.other PACS: 74.72.–h, 85.25.Cp, 74.50.+r
dc.identifier.uri http://dspace.nbuv.gov.ua/handle/123456789/118248
dc.description.abstract The moderately damped regime in a Josephson junction (JJ) is quite common in devices characterized by low critical currents and therefore by low Josephson energies. Measurements of switching current distribution (SCD) are a direct way of discriminating the phase dynamics also in the nontrivial case of moderate damping, which is going to be more and more common with advances in nanopatterning superconductors and in materials science finalized to build hybrid systems. We report on measurements of SCDs, both in thermal and quantum regime, on moderately damped YBaCuO grain boundary biepitaxial JJs. A direct transition from phase diffusion regime to macroscopic quantum tunnelling occurs at about 130 mK. The crossover to the quantum regime is tuned by the magnetic field and phase dynamics is described by a fully consistent set of junction parameters derived through numerical simulations. uk_UA
dc.description.sponsorship This work is supported by MIUR PRIN 2009 under the project “SuFET based on nanowires and HTS”. We also acknowledge partial support by a Marie Curie International Reintegration Grant No. 248933 hybMQC within the 7th European Community Framework Programme and by “FIRB-Futuro in Ricerca 2012” — Project HybridNanoDev (Grant No. RBFR1236VV). uk_UA
dc.language.iso en uk_UA
dc.publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України uk_UA
dc.relation.ispartof Физика низких температур
dc.subject К 75-летию со дня рождения И. К. Янсона uk_UA
dc.title Macroscopic quantum tunneling and retrapping processes in moderately damped YBaCuO Josephson junctions uk_UA
dc.type Article uk_UA
dc.status published earlier uk_UA


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