In this study we examine the influences of inter- and intragrain current systems on the total magnetic flux distribution (magnetization) and its dynamics in polycrystalline (Bi,Pb)2Sr2Ca2Cu3O10+x superconductors at 77 K. For measurement taking we used a movable miniature Hall sensor. The total magnetic behavior was dominated by the magnetization of the intergrain system if the transport (intergrain) Jc of the samples was sufficiently high. The influences of intragrain magnetization were clearly visible and distinguishable but were of minor importance because of the domination of the grain magnetization equilibrium component. The relaxation of the intergrain screening currents was found to exhibit a strong dependence on the magnetic history.
|Number of pages||10|
|Journal||Physica C: Superconductivity and its Applications|
|Publication status||Published - 10 Feb 1995|
|MoE publication type||A1 Journal article-refereed|