Bulk 2a×2b×c superstructure in TCNQ-trea
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C.-J. Liu; X.-J. Wu; H. Yamauchi
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Article
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1994
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Elsevier Science
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English
⚖ 426 KB
By reacting (Bi, Pb)-2223 cuprate superconductors with TCNQ (7,7,8,8-tetracyanoquinodimethane) in a sealed and evacuated pyrex ampoule at 300"C for 14 days, we have observed a superstructure of 2a×2bxc in a bulk form according to X-ray diffraction and transmission electron microscope analyses. The o