Bi_(2-x)Pr_xSr_2Ca_2Cu_3O_y超导体的研究  

Study of the Bi_(2-x)Pr_xSr_2Ca_2Cu_3O_y Superconductors

作　　者：盂庆云 李秀海[1] 傅敏华 邱官良 

机构地区：[1]北京化工学院应用数理系

出　　处：《北京化工大学学报（自然科学版）》1989年第4期105-108,共4页Journal of Beijing University of Chemical Technology(Natural Science Edition)

摘　　要：本文报导在零电阻温度为83K的Bi-Sr-Ca-Cu-O超导体中以不同含量Pr替代Bi的样品制备工艺、超导性能测试、X射线衍射及电镜的测量。测试表明Bi_(2-x)z Pr_x Sr_2 Ca_2 Cu_3 O_y中的Pr的摩尔含量x<0.2时样品的T_c在77K以上。这些样品随Pr含量的增加晶胞常数b,c有所增大,而a略有减小趋势。The superconductors of the partial substitution of Pr for Bi in the Bi-Sr-Ca-Cu-O system have a zero resistance at 83K. Their processing, resistive and magnetic measurements, X-ray diffraction and electron microscopy measurements are described. The result shows that, with the increasing of ⅹ, lattice constants of the b-and c-axes increases, but that of a-axes decreases.

关 键 词：超导性晶格 镨 鉍 Br-Sr-Ca-Cu-O超导体 

分 类 号：N55[自然科学总论]