Coherent quasiparticle transport in grain boundary junctions employing high-T-c superconductors

F. Tafuri; A. Tagliacozzo; D. Born; D. Stornaiuolo; E. Gambale; D. Dalena; P. Lucignano; Benoit Jouault; F. Lombardi; A. Barone; B. L. Altshuler

Acte de colloque

Coherent quasiparticle transport in grain boundary junctions employing high-T-c superconductors

F. Tafuri, A. Tagliacozzo, D. Born, D. Stornaiuolo, E. Gambale, D. Dalena, P. Lucignano, Benoit Jouault, F. Lombardi, A. Barone, …

MICROELECTRONICS JOURNAL, Vol.39, pp.1066-1069

Conference on European Nano Systems (ENS 2006) (Paris (FRANCE), France, 14/12/2006)

2008

Résumé

mesoscopic transport

high T-c superconductors

FLUCTUATIONS

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.

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Détails

Titre: Coherent quasiparticle transport in grain boundary junctions employing high-T-c superconductors
Créateurs - sans rôle: F. Tafuri
A. Tagliacozzo
D. Born
D. Stornaiuolo
E. Gambale
D. Dalena
P. Lucignano
Benoit Jouault - Groupe d'étude des semiconducteurs
F. Lombardi
A. Barone
B. L. Altshuler
Détails de publication: MICROELECTRONICS JOURNAL, Vol.39, pp.1066-1069
Colloque: Conference on European Nano Systems (ENS 2006) (Paris (FRANCE), France, 14/12/2006)
Identifiants: 9946931109311
Unité académique: Laboratoire Charles Coulomb - L2C
Langue: English
Type de ressource: Conference proceeding
Champs locaux: hal-00544478