共搜索到152条信息，每页显示10条信息，共16页。用时：0小时0分0秒346毫秒
HIGH-Tc SUPERCONDUCTIVITY AND PERCOLATION南策文,袁润章摘 要:<正> On microscopic and microstructural lev-els,the relations between high Tc superconduc-tivity and percolation have been discussed.On themicroscopic level,the critical oxygen concentra-tion in YBa2Cu307 with Tc around 90 K hasbeen obtained in terms of percolation.On themicrostruclural level......
Oxygen Relief/Absorption and Superconductivity of Bi-Pb-Sr-Ca-Cu-O Compounds覃作祥,张彦生,朱乃平摘 要:<正> The oxygen relief/absorption,superconduc-tivity and structure of(Bi1-xPbx)2Sr2Ca2-Cu3Oy compounds have been studied by TGA,electrical resistance measurement and X-raydiffraction.The amount of oxygen which can be re-leased and superconductivity......
Absence of superconductivity in Nd0.8Sr0.2NiOx thin films without chemical reductionXiao-Rong Zhou1,Ze-Xin Feng1,Pei-Xin Qin1,Han Yan1,Shuai Hu2,Hui-Xin Guo1,Xiao-Ning Wang1,Hao-Jiang Wu1,Xin...,and Pohl Institute of Solid-State Physics,School of Physics Science and Engineering,Tongji University摘 要:The recently reported 9-15 K superconductivity......
Superconductivity and Structure of BiSrCaEuCuO CompoundWang Ruikun He Qing Yu Dingan General Research Institute for Non-ferrous Metals,Beijing摘 要:<正> Since Michel et al.discoveredsuperconductivity of the BiSrCuO system at20K,the work of synthesizing highTc superconductors without rare-earth byadding some elements other than rare-earthsin......
THE SUPERCONDUCTIVITY OF SINGLE PHASE Ba2YCu3O9-xSUPERCONDUCTING CERAMICS崔万秋,陈丹平,邹云,张健,金德江摘 要:<正> The material of Ba2YCu3O9-x superconductingceramics has been prepared.Its Ac susceptibility hasbeen measured by Ac mutual induction method.Itsresistance has been measured by the four-probe method.The results show that the first transition tempe-ture......
Effects of Current-Injection on Superconductivity of YBa2Cu3O7-δ in La0.8Te0.2 MnO3/YBa2Cu3O7-δBilayer ZHU Yabin1,DAI Shouyu2 (1.Department of Physics, College of Science, Beijing Jiaotong... injection. Key words:metal materials; colossal magnetoresistance; superconductivity; injection-current; rare earths; [全文内容正在添加中] ......
Temperature Dependence of phase Transitions and Superconductivity in YBa2Cu3O7-X张彦生,田兴,陆兴,李晓丽,滕颖丽,庞旭摘 要:<正> By means of X-ray diffraction...℃ are not only continuous but alsoreversible.The isothermal transition oforthorhombic 2 to orthorhombic 1 occurs at350℃-500℃,while the maximum rate of transitionand high Tc superconductivity can be obtainedat......
High Tc Superconductivity of Mixed Rare Earth Er-Ba-Cu-O System徐涤,李晓贤,喻志东摘 要:ＨｉｇｈＴ_ｃＳｕｐｅｒｃｏｎｄｕｃｔｉｖｉｔｙｏｆＭｉｘｅｄＲａｒｅＥａｒｔｈＥｒ－Ｂａ－Ｃｕ－ＯＳｙｓｔｅｍＸｕＤｉ(徐涤)；ＬｉＸｉａｏ－Ｘｉａｎ(李晓贤)；ＹｕＺｈｉ－Ｄｏｎｇ(喻志东)(ＩｎｓｔｉｔｕｔｅｏｆＡｐｐｌｉｅｄＰｈｙｓｉｃｓ,Ｊ?..关键词:......
Preparation and Superconductivity of Ho-Substituted YBCO Thin FilmsPeng Zhengshun (Department of Chemistry, Capital Normal University, Beijing 100037, China)Hua Zhiqiang, Yang Bingchuan, Wang Xiaohua (General Research Institute for NonFerrous Metals, Beijing 100088, China)Zhao Zhongxian, Yin Bo (Institute of Ph摘 要:ＳｉｎｃｅｔｈｅｄｉｓｃｏｖｅｒｙｏｆｈｉｇｈＴｃｓｕｐｅｒｃｏｎ......
STUDY ON THE DEPENDENCE OF SUPERCONDUCTIVITY ON MICROSTRUCTURES FOR Ba-Y-Cu OXIDE MATERIALS崔万秋,邹云,陈丹平,何忆军,周晶摘 要:<正> Two kinds of ceramic superconductors of Ba-Y-Cu-O system in which the ratios of Ba:Y:Cu are equal to2:1:3 and 2:3:3,respectively,and two kinds ofceramic materials without superconductivity with thesame compositions were made.Their......
