Switching Current Measurements of EuBa2Cu3Oy Intrinsic Josephson Junctions

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dc.creatorUeda, S.
dc.creatorOkutsu, T.
dc.creatorIshii, S.
dc.creatorTakano, Y.
dc.date2007-05-11
dc.date.accessioned2026-07-07T08:00:56Z
dc.date.available2026-07-07T08:00:56Z
dc.descriptionWe investigated the switching dynamics of two kinds of EuBa2Cu3Oy (Eu123) intrinsic Josephson junctions (IJJs) with different anisotropy parameters gamma (= (m*c/m*ab)1/2) tuned to 37 and 22. In contrast to weakly-coupled IJJs in Bi2212, significant deviations from the thermally activated escape model of a single-stack Josephson junction were observed in their switching current distributions, P(I), due to the strongly-coupled nature of the Eu123 IJJs, The P(I) of the two IJJs are found to be independent of temperature, below 1.4 K and 4.2 K, respectively; which indicates the observation of macroscopic quantum tunneling at high temperatures of liquid He.
dc.description3 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0705.1651
dc.identifierhttp://arxiv.org/abs/0705.1651
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/128803
dc.subjectSuperconductivity
dc.titleSwitching Current Measurements of EuBa2Cu3Oy Intrinsic Josephson Junctions
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