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    Synthesis and properties of GaO2H nanorods
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    Selected area diffraction
    Nanorod
    Orthorhombic crystal system
    Lattice constant
    Abstract Six selected area electron diffraction (SAED) patterns and two HREM images from Pb 5 MoO 8 single crystals are presented and used to solve their structure. The unit cell parameters of these crystals confirm the known powder diffraction data.
    Selected area diffraction
    Gas electron diffraction
    Powder Diffraction
    The space group of and its variation with temperature was analyzed by selected area electron diffraction (SAED) and by convergent‐beam electron diffraction (CBED). All the reflection spots of SAED patterns of at room temperature could be indexed as orthorhombic symmetry with primitive lattice of a = 5.479, b = 5.516, and c = 7.766 Å. The space group of at room temperature was determined to be Pbnm (no. 62) from the analysis of CBED patterns. The reflection spots of SAED patterns which indicated orthorhombic symmetry disappeared with increase in temperature up to 300°C. From CBED patterns, it was clarified that the crystal system of at 300°C was rhombohedral with space group of R c (no. 167). © 2000 The Electrochemical Society. All rights reserved.
    Selected area diffraction
    Orthorhombic crystal system
    Reflection
    Space group
    Lattice (music)
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    Selected area diffraction
    Gas electron diffraction
    Citations (1)
    The modulation structure model by O atoms displacement in the BiO layers has been proposed according to the structure characteristics of Bi high-Tc superconductor.The selected area electron diffraction(SAED) and the convergent beam electron diffraction(CBED) patterns of the modulation model for the Bi-2212 phase have been simulated.The facts that effects of the displacement modulation of the O atoms for the electron diffraction patterns were very obvious indicated that action of the light atoms couldn't be ignored in the electron diffraction.The effects for CBED patterns were more sensitive than SAED,therefore,the advantage may be utilized to ascertain the O atom sites in the modulation structure of the Bi high-Tc superconductors.The patterns simulated for the SAED and the CBED were identical with the experimental results.
    Selected area diffraction
    Modulation (music)
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    Selected area diffraction
    Gas electron diffraction
    Kikuchi line