Affordable Access

Publisher Website

Transport critical current in granular samples under high magnetic fields

Authors
Journal
Physica C Superconductivity
0921-4534
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/s0921-4534(01)00792-4
Keywords
  • Transport Properties
  • Critical Current
  • Weak-Links
Disciplines
  • Physics

Abstract

Abstract A theoretical model for the magnetic field dependence of the transport critical current density in granular superconductors ( J c( B)) is proposed. In this model the transport critical current density is controlled by the weak-links (WLs) network present in the samples, and also, the influence of the field penetrating the grains is considered. Our results depend on the microstructure via the parameters of the WL distribution, and seems to reproduce the overall experimental data reported in the literature. A characteristic field is found from our study that characterizes the J c( B) dependence. Different field regimes are considered leading to simple expressions for J c( B).

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

The nature of transport critical current hysteresi...

on Physica C Superconductivity Jan 01, 1991

High critical currents under magnetic field at 77K...

on Physica C Superconductivity Jan 01, 1994

Magneto-transport in granular ribbons at high magn...

on Journal of Magnetism and Magne... Jan 01, 1999
More articles like this..