Crystal Structure and Superconductivity of (Hg0.5Pb0.5)Sr2(Sr1-xLax)Cu2Oz
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概要
- 論文の詳細を見る
An Hg-based superconducting cuprate (Hg0.5Pb0.5)Sr2(Sr1- xLa x)Cu2O z has been synthesized. X-ray diffraction patterns indicate that the 1212-compound exists only in a narrow composition range of 0.45≤x≤0.55. Rietveld refinement based on the space group P4/mmm gives tetragonal lattice parameters of a=3.869(7) and c=12.14(2) Å and a chemical composition of (Pb0.50Hg0.28Cu0.22)(Sr0.85La0.15)2(Sr0.44La0.56)Cu2O6.56 for the compound of x=0.55. Electrical resistivity measurements show that the sample with x=0.55 becomes superconducting after annealing in O2 with onset T c of 97 K.
- 1997-07-15
著者
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Asano Hajime
Instiiute Of Materials Science University Of Tsukuba
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Kandyel Elsayed
Institute Of Materials Science University Of Tsukuba
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Kamiyama Takashi
Instiiute Of Materials Science University Of Tsukuba
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Abou-sekkina Morsy
Chemistry Department Faculty Of Science Tanta University
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Ikeda Hiroshi
Cryogenic Center The University Of Tsukuba
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Taniguchi Takashi
Institute Of Nuclear Study University Of Tokyo
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El-Kersh Mokhtar
Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
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Ikeda Hiroshi
Cryogenics Center, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
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Kamiyama Takashi
Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
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Asano Hajime
Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
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Abou-Sekkina Morsy
Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
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Taniguchi Takashi
Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
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- PREFACE
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