Published August 15, 1988 | Version v1
Journal article

Small field behavior of critical current in Y1Ba2Cu3O7 sintered samples

  • 1. ENEA Dipartimento Fusione, CRE Frascati, C.P. 65, 00044 Frascati, Rome, Italy

Description

Critical currents carried by sintered Y1Ba2Cu3O7 superconducting samples have been measured at different temperatures close to the critical temperature T/sub c/. The effects of an applied magnetic field perpendicular to the current direction have been investigated. A strong reduction of the dc current for field values smaller than the lower critical field B/sub c/1 has been observed. The magnetic field dependence is discussed in terms of weak coupling between grains. The experimental data show an excellent agreement, at low field values, with the theoretical dependence valid for an array of Josephson junctions

Additional details

Publishing Information

Journal Title
Appl. Phys. Lett.
Journal Volume
53
Journal Issue
7
Series
Appl. Phys. Lett.
Journal Page Range
609-611
ISSN
0003-6951
CODEN
APPLA