Coherent quasiparticle transport in grain boundary junctions employing high-Tc superconductors

Authors :: Tafuri, F.
Tagliacozzo, A.
Born, D.
Stornaiuolo, D.
Gambale, E.
Dalena, D.
Lucignano, P.
Jouault, B.
Lombardi, F.
Barone, A.
Altshuler, B. L.
Source :: Dans European Nano Systems Worshop - ENS 2006, Paris : France (2006)
Publication Year :: 2007
Abstract: Magneto-fluctuations of the normal resistance RN have been reproducibly observed in YBa2Cu3O7-d biepitaxial grain boundary junctions at low temperatures. We attribute them to mesoscopic transport in narrow channels across the grain boundary line, occurring in an unusual energy regime. The Thouless energy appears to be the relevant energy scale. Possible implications on the understanding of coherent transport of quasiparticles in HTS and of the dissipation mechanisms are discussed.<br />Comment: Submitted on behalf of TIMA Editions (http://irevues.inist.fr/tima-editions)

Database :: arXiv
Journal :: Dans European Nano Systems Worshop - ENS 2006, Paris : France (2006)
Publication Type :: Report
Accession number :: edsarx.0708.1448
Document Type :: Working Paper

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