A correlation between the oxygen stoichiometry and Tc of Bi2CaSr2(1-x)Cu2(1-y)O8-2x-2y+deta superconductors
學年 79
學期 2
出版（發表）日期 1991-07-01
作品名稱 A correlation between the oxygen stoichiometry and Tc of Bi2CaSr2(1-x)Cu2(1-y)O8-2x-2y+deta superconductors
作品名稱（其他語言）
著者 Kao, H. C. I.; 高惠春 ; Chen, W. L.; Wei, T. P.; Lin, J. C.; 王啟銘; Wang, C. M.
單位 淡江大學化學學系
出版者
著錄名稱、卷期、頁數 Physica C: Superconductivity 177(4-6), pp.367-372
摘要 A series of superconductors with a nominal composition of Bi2CaSr2(1−x)Cu2O8−2x+δ or Bi2CaSr2 Cu2(1−y)O8−2y+δ, where 0≤x, y≤0.6, was prepared under identical conditions at 830°C. Their superconductivity degraded rapidly if x or y was larger than 0.4. from X-ray diffraction studies, it was suggested that vacancies were created when part of the SrO or CuO was removed from the Bi2CaSr2Cu2O8+δ. The extra oxygen stoichiometry, δ, decreased with increasing x but increased with increasing y. When δ was in between 0.04 and 0.18, Tc(zero) of Bi2CaSr2Cu2O8+δ was not dependent on δ and it was found to be about 60 K. Above this range, Tc(zero) decreased rapidly.
關鍵字
語言 en
ISSN 0921-4534
期刊性質 國外
收錄於
產學合作
通訊作者
審稿制度 否
國別 NLD
公開徵稿
出版型式 ,電子版,紙本
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