Convergent beam electron diffraction study of Bi-based high temperature superconducting layered compounds

Journal Article · Tue May 01 04:00:00 EDT 1990 · Modern Physics Letters B; (USA)

DOI:https://doi.org/10.1142/S0217984990000751· OSTI ID:6413214

Zhang, X F; Fung, K K ^[1]; Yan, Y F ^[2]

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1. Beijing Lab. of Electron Microscopy, Chinese Academy of Sciences, P.O. Box 2724, 100080 Beijing (CN)
2. Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, 100080 Beijing (CN)

Cleaved specimens of layered compounds Bi{sub 2}Sr{sub 2}(CaCuO{sub 2}){sub n}CuO{sub 6}, n = 0, 1 and 2 phases have been studied by convergent beam electron diffraction. The identity and the symmetry of the phases have been determined from the higher order Laue zone (HOLZ) rings and the symmetry of their (001) patterns. In the case of Bi{sub 2}Sr{sub 2}CuO{sub 6}, the (001) axial periodicity corresponds to the component of the wave vector of the monoclinic modulation along the c axis. Widely different axial periodicities have been obtained. This is interpreted as the manifestation of the variation of the monoclinic modulation. The presence of basal stacking fault lowers the symmetry of the (001) pattern.

• OSTI ID: 6413214
• Journal Information: Modern Physics Letters B; (USA), Journal Name: Modern Physics Letters B; (USA) Vol. 4:9; ISSN 0217-9849; ISSN MPLBE
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
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Cermets
& Refractories-- Physical Properties
640301 -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
656100* -- Condensed Matter Physics-- Superconductivity
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BISMUTH COMPOUNDS
CHEMICAL COMPOSITION
COHERENT SCATTERING
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON DIFFRACTION
HIGH-TC SUPERCONDUCTORS
LAYERS
PHASE STUDIES
PHYSICAL PROPERTIES
SCATTERING
STACKING FAULTS
SUPERCONDUCTIVITY
SUPERCONDUCTORS