Preparation of Single Phase (Bi0.8Pb0.2)2Sr2Ca2Cu3Oy Films with Preferential Orientation of C-Axis by Laser Ablation Method

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Abstract
By a laser ablation method using an Ar-F excimer pulsed laser, (Bi0.8Pb0.2)2Sr2Ca2Cu3O y (H-BSCC) films have been prepared in almost single phase on MgO(100) substrates. As-deposited films on substrates at room temperatures did not show any diffraction peaks of X-ray powder analysis. As-deposited films were treated thermally and the optimum conditions to obtain H-BSCC films in almost single phase were confirmed. Essential conditions were the temperature just below the melting point of H-BSCC, and heating for a prolonged duration together with a bulk sample of the same composition as that of the target.