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CRYSTALLOGROPHIC POSITION OF FLUORINE IN FLUORINE-DOPED BISMUTH SYSTEM SUPERCONDUCTOR
Author(s) -
Shuang Gao,
Guodong Zheng,
Xiaohui Gao,
Jie Li,
Jiang Shu-Fen,
Ding Dun-Huang
Publication year - 1994
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.43.655
Subject(s) - bismuth , superconductivity , materials science , fluorine , doping , condensed matter physics , x ray photoelectron spectroscopy , analytical chemistry (journal) , nuclear magnetic resonance , physics , chemistry , metallurgy , optoelectronics , chromatography
According to the changes of XPS, IR and lattice constants in bismuth (lead) system superconductor, the location of F substitution in O(2) has been determined. The Tc0 in fluorme doped bismuth (lead) system superconductor can be inproved greatly with the formation of Pb-F and Cu-F, the strengthening of coherence between Cu-O and Bi-O plane, and the increasing of chemical pressure and the density of electronic states.

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