title: New Materials Derived from Ybco: CrSr2RECu2O8 (RE = La, Pr, Nd, Eu, Gd, Tb, Dy, Y, Ho, Er, Lu).
abstract: Eleven new oxides, derived from yttrium barium copper oxide by replacing the square-planar copper [Cu-O4] of the basal plane of the triple perovskite-based structure with octahedral Cr(IV), have been prepared at high pressure and temperature. Their crystal structures have been determined, and their complex microstructure has been established by means of high-resolution electron microscopy and electron diffraction. The materials have a general formula of CrSr2RECu2O8 (RE = La, Pr, Nd, Eu, Gd, Tb, Dy, Y, Ho, Er, and Lu); they are tetragonal, show the symmetry of space group P4/mmm, and do not appear to be superconducting.
authors.affiliation: Laboratorio de Química del Estado Sólido, Departamento de Química Inorgánica, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain.
authors.forename: Rocío
authors.initials: R
authors.lastname: Ruiz-Bustos
authors.forename: Myriam H
authors.initials: MH
authors.lastname: Aguirre
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Alario-Franco