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- W1974055424 abstract "Abstract We have successfully synthesized a new 1212-type (Hg, Cr)-based cuprate (Hg 1− x Cr x )Sr 2 (Ca 1− y Y y )Cu 2 O 6+δ (0.1≤x≤0.5 and 0.1≤ y ≤0.5). According to X-ray diffraction data, the samples with x ≥0.2 and y ≤0.2 are 90–95% pure 1212 phase. The structure of the (Hg, Cr)-1212 compound is tetragonal of space group P4/mmm. Depending on the nominal composition, the lattice parameters are in the order of a =3.8526 A and c =11.8194 A. Refinements of the structure show the presence of two extra oxygen atoms O(3) and O(4) in the (Hg, Cr) layer at the position (1/2,1/2, 0)and(1/2, 0, 0), respectively. The (Hg, Cr)-1212 samples are not superconducting, and show a semiconducting behavior instead. The non-superconductivity of the samples is explained in terms of the concept of mixed Cu 2+ /Cu 3+ valence." @default.
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- W1974055424 date "1995-02-01" @default.
- W1974055424 modified "2023-09-27" @default.
- W1974055424 title "New 1212-type (Hg, Cr)-based cuprate (Hg1−xCrx)Sr2(Ca1−yYy)Cu2O6+δ" @default.
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- W1974055424 doi "https://doi.org/10.1016/0921-4534(94)02393-x" @default.
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