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Structural properties and superconductivity of Na0.3CoO2·1.3H2O superconductors[J]. PHYSICS, 2003, 32(10).
Citation: Structural properties and superconductivity of Na0.3CoO2·1.3H2O superconductors[J]. PHYSICS, 2003, 32(10).
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Structural properties and superconductivity of Na0.3CoO2·1.3H2O superconductors

  • (1)中国科学院物理研究所超导国家重点实验室 北京100080

  • (2)中国科学院物理研究所超导国家重点实验室 北京100080

  • 中国科学院物理研究所电子显微镜重点实验室 北京100080

  • (3)中国科学院物理研究所电子显微镜重点实验室 北京100080

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  • Published Date: October 19, 2003
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  • The synthesis, superconductivity and structural properties of Na0.3CoO2·1.3H2O superconductors have been investigated. Analysis demonstrates that the basic crystal structure of this superconducting phase has a hexagonal cell with the P6 3/mmc space group symmetry. Electron microscopy observations reveal a prominent layer feature along the c－direction and a new superstructure within the CoO2 layers. Electron energy loss spectrometry analyses show that the Co ions have valence states of around +3.7 in this superconducting materials.
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