EXAFS studies of (Pb,Cd)1212 phase superconductor and (Bi,Cd)1212 phase compound
文献类型:期刊论文
作者 | Tao, Y![]() ![]() ![]() ![]() ![]() ![]() ![]() |
刊名 | JOURNAL OF SYNCHROTRON RADIATION
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出版日期 | 1999 |
卷号 | 6期号:3页码:764-766 |
关键词 | high Tc superconductor XAFS disorder PbCd1212 BiCd1212 |
通讯作者 | Inst High Energy Phys, Synchrotron Radiat Lab, Beijing 100039, Peoples R China ; Univ Sci & Technol China, Basic Phys Ctr, Hefei 230026, Peoples R China ; Washington Univ, Sch Med, Ctr Mol Design, St Louis, MO 63110 USA ; Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China ; IIT, CSRRI, BioCAT, Chicago, IL 60616 USA |
英文摘要 | We synthesized (Pb,Cd)Sr-2(Y,Ca)Cu2O7+x phase superconductor. After substitution of ph with Bi, the BiCd1212 phase shows no superconductivity. Although previous EXAFS study has shown the local structure environment of the Cu is similar in both compounds, EXAFS results of Bi and Pb here demonstrate that sigma(2) of Pb-Oin-plane is larger than that of Bi-Oin-plane, whereas sigma(2) of Pb-O-apical is smaller than that of Bi-O-apical. The Sr shell features are also different. It appeared that superconductivity needs some disorder in carrier reservoir layer, which is due to the substitutional defect caused by different ionic radii. |
学科主题 | Instruments & Instrumentation; Optics; Physics |
类目[WOS] | Instruments & Instrumentation ; Optics ; Physics, Applied |
研究领域[WOS] | Instruments & Instrumentation ; Optics ; Physics |
原文出处 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000081221700229 |
源URL | [http://ir.ihep.ac.cn/handle/311005/238445] ![]() |
专题 | 高能物理研究所_多学科研究中心 高能物理研究所_加速器中心 高能物理研究所_理论物理室 |
作者单位 | 中国科学院高能物理研究所 |
推荐引用方式 GB/T 7714 | Tao, Y,Wei, SQ,Sun, HM,et al. EXAFS studies of (Pb,Cd)1212 phase superconductor and (Bi,Cd)1212 phase compound[J]. JOURNAL OF SYNCHROTRON RADIATION,1999,6(3):764-766. |
APA | Tao, Y.,Wei, SQ.,Sun, HM.,Zhao, GW.,Hu, TD.,...&刘涛.(1999).EXAFS studies of (Pb,Cd)1212 phase superconductor and (Bi,Cd)1212 phase compound.JOURNAL OF SYNCHROTRON RADIATION,6(3),764-766. |
MLA | Tao, Y,et al."EXAFS studies of (Pb,Cd)1212 phase superconductor and (Bi,Cd)1212 phase compound".JOURNAL OF SYNCHROTRON RADIATION 6.3(1999):764-766. |
入库方式: OAI收割
来源:高能物理研究所
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