Fluctuations Indicate Strong Interlayer Coupling in Cuprate Superconductors

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dc.creatorSkinta, J. A.
dc.creatorLemberger, T. R.
dc.creatorWertz, E.
dc.creatorWu, K.
dc.creatorLi, Q.
dc.date2001-07-19
dc.date.accessioned2026-07-07T02:42:13Z
dc.date.available2026-07-07T02:42:13Z
dc.descriptionFrom study of the Kosterlitz-Thouless-Berezinskii (KTB) transition in the superfluid density, n_s(T), of ultrathin c-axis oriented YBa_{2}Cu_{3}O_{7-δ} (YBCO) films, we find that interlayer coupling is unexpectedly strong. The KTB transition occurs at a high temperature, as if the films were isotropic rather than quasi-two-dimensional. This result agrees with a comparison of the superfluid density of YBCO with Bi_{2}Sr_{2}CaCu_{2}O_{8} and with numerical simulations of Josephson junction arrays, and challenges the thermal phase fluctuation interpretation of critical behavior near T_c in YBCO.
dc.description6 pages, 2 figures, submitted to Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/cond-mat/0107406
dc.identifierhttp://arxiv.org/abs/cond-mat/0107406
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18053
dc.subjectSuperconductivity
dc.titleFluctuations Indicate Strong Interlayer Coupling in Cuprate Superconductors
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