Published September 11, 1989 | Version v1
Journal article

Flux-creep-limited critical currents in YBa2Cu3O7-δ ceramics

  • 1. Raymond and Beverly Sackler Faculty of Exact Science, School of Physics and Astronomy, Tel Aviv University, 69978 Ramat Aviv, Israel (Israel)
  • 2. Laboratoire de Chimie du Solide Mineral, Ecole Superieure de Physique et Chimie Industrielles, 75231 Paris, France
  • 3. Laboratoire de Physique des Solides, Universite Paris-Sud, 91485 Orsay, France
  • 4. Laboratoire d'Optique Physique, Ecole Superieure de Physique et Chimie

Description

Critical currents of YBa2Cu3O7-δ bulk-sintered samples were measured at and above 77 K in the presence of magnetic fields. In moderate magnetic fields a H-n dependence with n<1 was observed. Transport measurements give n congruent 0.5, indicating that critical currents are limited by flux creep rather than by field quenching of Josephson junctions

Additional details

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
55
Journal Issue
11
Series
Appl. Phys. Lett.
Journal Page Range
1135-1137
ISSN
0003-6951
CODEN
APPLA