Single-Crystal Growth of Bi2(Sr, Ca)3-dCu2Ox and its Superconductivity

Abstract
A single crystal of Bi2.2(Sr, Ca)3-d Cu2O x was grown by a self-flux method using a solution containing excess Bi2O3 and CuO compared to the composition of Bi2(Sr, Ca)3-d Cu2O x in the Bi-Sr-Ca-Cu-O system. The dimensions of the single crystal obtained were up to 7×5×1 mm3. The critical temperature of the single crystal was 84 K which was determined by both magnetization and electrical resistivity measurements. The ratio of resistivities in the c-plane and along the c-axis was found to be approximately 35 at T c onset.