%0 Conference Proceedings
%T Coherent quasiparticle transport in grain boundary junctions employing high-T-c superconductors
%+ Groupe d'étude des semiconducteurs (GES)
%A Tafuri, F.
%A Tagliacozzo, A.
%A Born, D.
%A Stornaiuolo, D.
%A Gambale, E.
%A Dalena, D.
%A Lucignano, P.
%A Jouault, Benoit
%A Lombardi, F.
%A Barone, A.
%A Altshuler, B. L.
%< avec comité de lecture
%Z GES:08-110
%( MICROELECTRONICS JOURNAL
%( MICROELECTRONICS JOURNAL
%B Conference on European Nano Systems (ENS 2006)
%C Paris (FRANCE), France
%V 39
%P 1066-1069
%8 2006-12-14
%D 2006
%K mesoscopic transport
%K high T-c superconductors
%K FLUCTUATIONS
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Conference papers
%X Magneto-fluctuations of the normal resistance R-N have been reproducibly observed in YBa2Cu3O7-delta biepitaxial grain boundary junctions at low temperatures. We attribute them to mesoscopic transport in narrow channels across the grain boundary line, occurring even in the presence of large voltage drops. The Thouless energy appears to be the relevant energy scale. Possible implications on the understanding of coherent transport of quasiparticles in high critical temperature superconductors (HTS) and of the dissipation mechanisms are discussed. (c) 2007 Elsevier Ltd. All rights reserved.
%G English
%L hal-00544478
%U https://hal.science/hal-00544478
%~ CNRS
%~ UNIV-MONTP2
%~ GES
%~ UNIV-MONTPELLIER
%~ UM1-UM2
%~ I-REVUES