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Syntheses and neutron powder diffraction studies of the superconductor HgBa2Ca2Cu3O8+delta by Pb substitution
Wu, XS; Shao, HM; Jiang, SS; Gou, C; Chen, DF; Wang, DW; Wu, ZH; Wang DW(王德武); Wu ZH(吴忠华)
1996
发表期刊PHYSICA C
卷号261期号:3-4页码:#REF!
通讯作者Wu, XS (reprint author), NANJING UNIV,NATL LAB SOLID STATE MICROSTRUCT,NANJING 210093,PEOPLES R CHINA.
摘要Substitution of Pb for Hg was performed in the Hg based 1223 phase HgBa2Ca2Cu3O8+delta a (T-c similar to 135 K), resulting in an increase of the superconducting transition temperature to T-c(dia) = 143 K for samples with a nominal composition of Hg0.7Pb0.3Ba2Ca2Cu3O8+delta. The crystal structure of this solid solution has been investigated by neutron powder diffraction (NPD) and synchrotron X-ray diffraction (SXRD) techniques at room temperature (RT). The compound has the same crystal structure as Hg-1223 with the space group P4/mmm and lattice parameters a = 3.8457(1) Angstrom and c = 15.8252(7) Angstrom. Rietveld analysis results indicate that Hg is partially replaced by Pb, and the oxygen content, delta, is 0.450(2). The lattice parameter changes resulting from the Pb substitution are too small to account for the T-c change mimicking the effect of pressure.
文章类型Article
学科领域Physics
DOI10.1016/0921-4534(96)00150-5
收录类别SCI
WOS类目Physics, Applied
WOS记录号WOS:A1996UP27600002
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226808
专题多学科研究中心
推荐引用方式
GB/T 7714
Wu, XS,Shao, HM,Jiang, SS,et al. Syntheses and neutron powder diffraction studies of the superconductor HgBa2Ca2Cu3O8+delta by Pb substitution[J]. PHYSICA C,1996,261(3-4):#REF!.
APA Wu, XS.,Shao, HM.,Jiang, SS.,Gou, C.,Chen, DF.,...&吴忠华.(1996).Syntheses and neutron powder diffraction studies of the superconductor HgBa2Ca2Cu3O8+delta by Pb substitution.PHYSICA C,261(3-4),#REF!.
MLA Wu, XS,et al."Syntheses and neutron powder diffraction studies of the superconductor HgBa2Ca2Cu3O8+delta by Pb substitution".PHYSICA C 261.3-4(1996):#REF!.
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