Ⅰ. INTRODUCTIONX. D. Xiang et al. have reported the preliminary structural characteristics of the iodine intercalated Bi_2Sr_2Ca_1Cu_2O_y high T_c superconductors. The cell dimension along c direction is expanded fro...Ⅰ. INTRODUCTIONX. D. Xiang et al. have reported the preliminary structural characteristics of the iodine intercalated Bi_2Sr_2Ca_1Cu_2O_y high T_c superconductors. The cell dimension along c direction is expanded from 30.80 to 37.78 after iodine is intercalated. They suggested that an iodinelayer addition with 3.5 thickness is inserted into the host crystal perpendicular to c direction. The transition temperature of the host superconductor is ranged from 82 to 90 K.展开更多
文摘Ⅰ. INTRODUCTIONX. D. Xiang et al. have reported the preliminary structural characteristics of the iodine intercalated Bi_2Sr_2Ca_1Cu_2O_y high T_c superconductors. The cell dimension along c direction is expanded from 30.80 to 37.78 after iodine is intercalated. They suggested that an iodinelayer addition with 3.5 thickness is inserted into the host crystal perpendicular to c direction. The transition temperature of the host superconductor is ranged from 82 to 90 K.