Open AccessMICROSTRUCTURES OF Zn,Ni,Mg DOPED La1.85Sr0.15CuO4 IN HIGH DOPING LEVEL
Author(s) -
Wang Feng-Zhong,
Wu Xiaoshan,
S. S. Jiang
Publication year - 2000
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.49.1541
Subject(s) - materials science , doping , tetragonal crystal system , orthorhombic crystal system , impurity , rietveld refinement , lattice constant , cuprate , microstructure , analytical chemistry (journal) , superconductivity , ceramic , condensed matter physics , diffraction , crystal structure , crystallography , metallurgy , optics , physics , chemistry , optoelectronics , chromatography , quantum mechanics
We successfully synthesized La1.85Sr0.15Cu1-xMxOy (M=Zn,Ni,Mg) with y≤0.30 ceramic cuprates. X-ray diffraction studies show that there is no impurity phase in all Zn,Ni,Mg-doped LSCO. Rietveld refinement technique is used to obtain the lattice constant,atomic position coordinates and reflection profile parameters for all samples. There is a tetragonal-to-orthorhombic phase transition in the range of 0.10c of the samples in superconducting state.