Magnetic Flux Distribution in Polycrystalline Bi,Pb-Sr-Ca-Cu-0 Superconductors in a Cyclic State

J. Paasi, M. Polak, M. Lahtinen, J. T. Eriksson, V. Plechacek

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

We have studied magnetic flux distribution in polycrystalline (Bi,Pb)2Sr2Ca2Cu3O10+x superconductors at 77 K at different stages of an external magnetic field cycle using a movable miniature Hall sensor. The measured magnetic field profiles are compared to profiles achieved by numerical field calculations. The existence of both inter- and intragranular currents causes deviations to the field profiles predicted by classical critical state models leading to incorrect critical current density estimations, when using standard magnetization measurements.

Original languageEnglish
Pages (from-to)1378-1381
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume3
Issue number1
DOIs
Publication statusPublished - Mar 1993
MoE publication typeA1 Journal article-refereed

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