| Influence of vanadium doping on the behavior of YBa_2Cu_3O_7-y |
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| 作者姓名： | 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 ChinaPopov V.V. Repin S.M. Smirnov LA. loffe Physicotechnical Institute Russian Academy of Sciences Saint Petersburg Russia |
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| 作者单位： | 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 |
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| 基金项目： | Project supported by the National Science and Technology Committee of China and the National Natural Science Foundation of China. |
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| 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.
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Influence of vanadium doping on the behavior of YBa_2Cu_3O_7-y |
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| 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 ,ChinaPopov,V.V. Repin,S.M. Smirnov,LA. loffe Physicotechnical Institute,Russian Academy of Sciences,Saint Petersburg,Russia.Influence of vanadium doping on the behavior of YBa_2Cu_3O_7-y[J].Chinese Journal of Chemistry,1994,12(5):419-424. |
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| Authors: | 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 ChinaPopov VV Repin SM Smirnov LA loffe Physicotechnical Institute Russian Academy of Sciences Saint Petersburg Russia |
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| Institution: | 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 |
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| Abstract: | 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. |
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| Keywords: | YBa2Cu3O7-y high-Tc superconductor vanadium doping impurity effect |
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