Intergrain flux creep in high-Tc superconductors

Jaakko Paasi, Jarl Thure Eriksson

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

Abstract

Equations describing the intergrain flux creep of ceramic superconductors are derived. They are based on the behavior of small superconducting loops closed by overdamped Josephson junctions. The elementary loops are formed around nonsuperconducting regions between the grains, the loops acting as pinning centers. Despite different pinning mechanisms the equations for the relaxation of the intergrain current density in a static and a slowly varying external magnetic field are formally similar to those of the classical flux-creep theory based on volume pinning.

Original languageEnglish
Pages (from-to)9873-9876
Number of pages4
JournalPhysical Review B
Volume48
Issue number13
DOIs
Publication statusPublished - 1 Jan 1993
MoE publication typeA1 Journal article-refereed

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