Magnetization Characteristics of Multiple Bulk Superconductors for Higher Field Applications.

Abstract: We studied the magnetization characteristics of the arrayed and stacked bulk superconductors. The bulks were made of GdBaCuO superconductor. Two-dimensional magnetic flux density distributions over bulks were measured after 2.0 T magnetic fields cooling at 77K. The current densities in the bulks were estimated 108 A/m2 order at 77K and the field cooling conditions. The experimental results showed the proposed structure can obtain larger trapped flux area than that of a single bulk. [Copyright &y& Elsevier]