THE BEHAVIOR OF 100K SUPERCONDUCTING PHASE IN Pb-doped Bi-Ca-Sr-Cu-O SYSTEM
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Abstract
The ac magnetic susceptibility, the magnetoresistance R(H) and the dependence of the resistivity on temperature under different applied field were investigated in the Pb-doped Bi-Ca-Sr- Cu-O system. A superconducting phase with Tc~100K exists in this sintered sample. It forms a well connecting network, and therefore the Josephson coupling between the superconducting grains is sharply improved by doping lead.
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