Microstructure and Superconductivity of Ultrathin YBa_(2)Cu_(3)O_(7)-δFilms  

作　　者：ZHENG Lizhen SUN Jijun ZHAO Bairu XU Bo LI Jinwei YIN Bo WU Fei JIA Shunlian LI Lin ZHAO Zhongxian ZHU Chuanfeng BAI Chunli 

机构地区：[1]National Laboratory for Superconductivity,Institute of Physics,Academia Sinica,Beijing 100080 [2]Institute of Chemistry,Academia Sinica,Beijing 100080

出　　处：《Chinese Physics Letters》1995年第10期625-628,共4页中国物理快报（英文版）

基　　金：Supported by the Chinese National Center for Research and Development on Superconductivity.

摘　　要：Two unit cells to 200Åthick ultrathin YBa_(2)Cu_(3)O_(7)-δfilms have been synthesized and their growth mechanism and physical properties have been studied.Atomic force microscopy showed that the films grow with both spiral and layer by layer modes and the screw dislocations appeared even in the 6 unit cells thick films.In the initial growth stages of the films,the strong dependence of T_(c)on the film thickness is discussed.

关 键 词：(3) THICK MICROSTRUCTURE 

分 类 号：G63[文化科学—教育学]