X-RAY DIFFRACTION STUDY OF THE MODULATED STRUCTURE IN Bi2Sr2CaCu2Oy SINGLE CRYSTALS | Zendy

Zheng Xu | Zendy; Xiaoru Zhao | Zendy; WU WEN-BIN | Zendy; Sun Xue-feng | Zendy; Liangbin Wang | Zendy; Guien Zhou | Zendy; Li Xiao-Guang | Zendy; Yuheng Zhang | Zendy

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X-RAY DIFFRACTION STUDY OF THE MODULATED STRUCTURE IN Bi2Sr2CaCu2Oy SINGLE CRYSTALS

Author(s) -

Zheng Xu,

Xiaoru Zhao,

WU WEN-BIN,

Sun Xue-feng,

Liangbin Wang,

Guien Zhou,

Li Xiao-Guang,

Yuheng Zhang

Publication year - 1996

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.45.1578

Subject(s) - bravais lattice , superlattice , monoclinic crystal system , orthorhombic crystal system , materials science , diffractometer , condensed matter physics , lattice (music) , diffraction , crystallography , crystal structure , brillouin zone , single crystal , reciprocal lattice , optics , physics , chemistry , acoustics

The modulated structure of Bi2Sr2CaCu2Oy single crystals has been observed and studied in detail with an X-ray rotating-anode diffractometer, indicating that the satellites of Bragg reflections are stretched along the c* direction in reciprocial space. It is the result of the stretch that the widened peaks are incompatible with a B-centered orthorhombic bravais lattice , and the intensities of satellites become asymmetry. The superlattice based on the lattice mismatch is not orthorhombic but monoclinic and perhaps forms superlattice twin structure in Bi-2212 single crystals.

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