Influence of vanadium doping on the behavior of YBa_2Cu_3O_7-y

作     者：MENG, Jian REN, Yu-Fang LI, Xiao-GuangLaboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, ChinaPopov, V.V. Repin, S.M. Smirnov, LA. loffe Physicotechnical Institute, Russian Academy of Sciences, Saint Petersburg, Russia 

作者机构：1Laboratory of Rare Earth Chemistry and Physics Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun Jilin 130022 China2Ioffe Physicotechnical Institute Russian Academy of Sciences Saint Petersburg Russia 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：1994年第12卷第5期

页      面：419-424页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：Project supported by the National Science and Technology Committee of China and the National Natural Science Foundation of China 

主　　题：YBa2Cu3O7-y high-Tc superconductor vanadium doping impurity effect. 

摘      要：YBa2Cu3-xVxO7-y(x=0, 0.1, 0.2, 0.3, 0.4, 0.5 and 0.6) superconductors have been prepared. X-ray diffraction shows that the system remains orthorhombic for all compositions studied, but for x 0.4 V2O5 was detected as an impurity phase. Substitution of V5+ for Cu2+ occurs in the Cu(2) sites on the Cu(2)-O planes. The introduction of the high valence element, vanadium, produces the extra free-electrons. These electrons recombine with the positive carrier of the system. It makes depression of the mobility and the Hall number of YBa2Cu3-xVxO7-v and also results in a depression of TC.