Applied Physics Letters · 1987 · 665 citations · 3 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsCrystal StructureSolid State PhysicsCrystal LatticeCrystal SystemsCrystallographyLattice StructuresNeutron DiffractionSuperconducting MaterialsCuprate SuperconductorsHigh-temperature SuperconductivityHigh-temperature SuperconductorsLattice ConstantsOrthorhombic LatticesOrthorhombic SystemPowder DiffractionPowder Neutron Diffraction
We have determined the crystal structure of the single-phase stoichiometric high-temperature superconductor in the Y-Ba-Cu-O system using high-resolution neutron powder diffraction. This compound has an orthorhombic structure with space group Pmmm and lattice constants a=3.8231 Å, b=3.8864 Å, and c=11.6807 Å. The structure consists of ‘‘dimpled’’ CuO2 layers in the a-b planes loosely bonded by one-dimensional fencelike square-planar CuO3 chains in the b-c planes.
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Phase diagram and superconductivity in the Y-Ba-Cu-O system
D. G. Hinks, L. Soderholm, D. W. Capone et al. · Applied Physics Letters · 1987 · 144 citations