Japanese Journal of Applied Physics · 1987 · 18 citations · 3 references
Natural SciencesChemistryMaterials ScienceCrystal StructureMaterials CharacterizationSolid-state ChemistryCrystal ChemistryCrystallographyMetal OxidesSuperconducting MaterialsX-ray CrystallographyX-ray DiffractionCuprate SuperconductorsHigh-temperature SuperconductivityHigh-temperature SuperconductorsLattice ParametersPowder DiffractionPowder Diffraction AnalysisPowder X-ray DiffractionSuperconducting Properties
Results of the analyses on crystal structure and chemical composition of dark-green crystals mainly found in an Y-Ba-Cu oxide specimen which shows high- T c superconductivity are reported. Crystal structure is investigated by the electron diffraction method and is determined to be orthorhombic with lattice parameters a =1.22 nm, b =0.561 nm and c =0.714nm, and with a space group Pnma (No. 62) or Pna2 1 (No. 33). Expected d -values are presented and are successfully compared with the X-ray powder diffraction spectrum obtained from this oxide. Chemical composition is analyzed by the EPMA method and is determined to be Y 2 BaCuO 5- y for the oxide.
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Specific Heat of a New Dense-Kondo Compound CePdIn
Y. Maeno, M. Takahashi, Toyomi Fujita et al. · Japanese Journal of Applied Physics · 1987 · 36 citations · Full text