Hm. Luo et al., SYNTHESIS AND CHARACTERIZATION OF NEW CUPRATES WITH THE 1222-STRUCTURE (LN,ZN)SR-2(LN,CE)(2)CU2OZ (LN=RARE-EARTH-ELEMENT), Journal of alloys and compounds, 267(1-2), 1998, pp. 11-13
New cuprates with the 1222 structure, (Ln,Zn)Sr-2(Ln,Ce)(2)Cu2Oz, have
been synthesized and characterized by X-ray diffraction (XRD) and mag
netic measurements. The compounds have tetragonal cell with space grou
p [4/mmm. The structure of (Ce0.5Zn0.5)Sr-2(Y0.5Gd0.8Ce0.7)Cu2Oz has b
een determined by Rietveld refinement and the lattice parameters are n
=3.8299(1)Angstrom, c=29.1926(5)Angstrom. The as-prepared materials ar
e not superconducting under the present preparation conditions. (C) 19
98 Elsevier Science S.A.