Observation and studies of 98 K superconductivity in oxygen-deficient tetragonal Pr0.5Ca0.5Ba2Cu3O7-delta synthesized under high-pressure
文献类型：期刊论文
| 作者 | Xiong, YF ; Yao, YS ; Xu, LF ; Wu, F ; Jin, D ; Zhao, ZX |
| 刊名 | SOLID STATE COMMUNICATIONS
 |
| 出版日期 | 1998 |
| 卷号 | 107期号:9页码:509 |
| 关键词 | NORMAL-STATE PROPERTIES THIN-FILMS PRBA2CU3O7 PR Y1-XPRXBA2CU3O7-DELTA YBA2CU3O7-DELTA PRASEODYMIUM SUPPRESSION CA |
| ISSN号 | 0038-1098 |
| 通讯作者 | Xiong, YF (reprint author), Ctr Condensed Matter Phys, Natl Lab Superconduct, Beijing 10080, Peoples R China. |
| 中文摘要 | We report the first observation of superconductivity in a bulk Pr1-xCaxBa2Cu3O7-delta (0.4 less than or equal to x less than or equal to 0.6) system synthesized under high pressure with different oxygen environments. The highest T-c of 98 K was observed for the oxygen-deficient tetragonal Pr0.5Ca0.5Ba2Cu3O7-delta sample. Our results unambiguously demonstrate that Pr has a mixed valency greater than 3+. We conclude that hole depletion is the primary cause of the suppression of superconductivity by Pr in PrBa2Cu3O7, eliminating the hypothesis based upon pair-breaking. (C) 1998 Elsevier Science Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50122]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Xiong, YF,Yao, YS,Xu, LF,et al. Observation and studies of 98 K superconductivity in oxygen-deficient tetragonal Pr0.5Ca0.5Ba2Cu3O7-delta synthesized under high-pressure[J]. SOLID STATE COMMUNICATIONS,1998,107(9):509. |
| APA | Xiong, YF,Yao, YS,Xu, LF,Wu, F,Jin, D,&Zhao, ZX.(1998).Observation and studies of 98 K superconductivity in oxygen-deficient tetragonal Pr0.5Ca0.5Ba2Cu3O7-delta synthesized under high-pressure.SOLID STATE COMMUNICATIONS,107(9),509. |
| MLA | Xiong, YF,et al."Observation and studies of 98 K superconductivity in oxygen-deficient tetragonal Pr0.5Ca0.5Ba2Cu3O7-delta synthesized under high-pressure".SOLID STATE COMMUNICATIONS 107.9(1998):509. |
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来源：物理研究所
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