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EXAFS studies of (Pb,Cd)1212 phase superconductor and (Bi,Cd)1212 phase compound
Tao, Y; Wei, SQ; Sun, HM; Zhao, GW; Hu, TD; Xie, YN; Ju, X; Liu, T; Tao Y(陶冶); Hu TD(胡天斗); Xie YN(谢亚宁); Ju X(巨新); Liu T(刘涛)
1999
发表期刊JOURNAL OF SYNCHROTRON RADIATION
卷号6期号:3页码:764-766
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
文章类型Article; Proceedings Paper
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.
关键词high Tc superconductor XAFS disorder PbCd1212 BiCd1212
学科领域Instruments & Instrumentation; Optics; Physics
研究领域[WOS]Instruments & Instrumentation ; Optics ; Physics ; Instruments & Instrumentation ; Optics ; Physics
DOI10.1107/S0909049598017178
URL查看原文
语种英语
研究领域[WOS]Instruments & Instrumentation ; Optics ; Physics ; Instruments & Instrumentation ; Optics ; Physics
WOS类目Instruments & Instrumentation ; Optics ; Physics, Applied
WOS记录号WOS:000081221700229
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238445
专题多学科研究中心
作者单位中国科学院高能物理研究所
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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.
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