Misalignment angles and the 2D–3D temperature crossover in Bi2212 multifilaments studied using transport critical current densities

Autor: Jean-Louis Soubeyroux, Nicolas Lallouet, D. Bourgault, E Flahaut, Robert Tournier, C.E. Bruzek, A. Antonevici
Přispěvatelé: Consortium de Recherches pour l'Emergence des Technologies Avancées (CRETA), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])
Rok vydání: 2004
Předmět:
Zdroj: Superconductor Science and Technology
Superconductor Science and Technology, IOP Publishing, 2004, 17 (3), pp.463-468. ⟨10.1088/0953-2048/17/3/027⟩
ISSN: 1361-6668
0953-2048
DOI: 10.1088/0953-2048/17/3/027
Popis: Misalignment angles in multifilamentary Bi2212 tapes have been obtained by measuring transport critical current densities. The study shows that two misalignment angles exist in such materials. The samples studied give a transversal misalignment angle ?*, perpendicular to the filaments, of close to 8? and a longitudinal one ?*, parallel to the filaments, of about 5.5?. The 2D?3D temperature crossover T* of the vortices network has also been estimated using the angular dependence of transport Jc in a magnetic field at different temperatures.
Databáze: OpenAIRE