title: Microwave-Assisted Synthesis, Microstructure, and Magnetic Properties of Rare-Earth Cobaltites.
abstract: The series of perovskite rare-earth (RE) doped cobaltites (RE)CoO3(RE = La-Dy) was prepared by microwave-assisted synthesis. The crystal structure undergoes a change of symmetry depending on the size of the RE cation. LaCoO3is rhombohedral, S.G. R3̅c (No. 167), while, for the rest of the RE series (Pr-Dy), the symmetry is orthorhombic, S.G. Pnma (No. 62). The crystal structure obtained by X-ray diffraction was confirmed by high-resolution transmission electron microscopy, which yielded a good match between experimental and simulated images. It is further shown that the well-known magnetism in LaCoO3, which involves a thermally induced Co3+(d6) low spin to intermediate or high spin state transition, is strongly modified by the RE cation, and a rich variety of magnetic order has been detected across the series.
authors.affiliation: Dpto. Química Inorgánica I, Facultad CC. Químicas, Universidad Complutense de Madrid , 28040 Madrid, Spain.
authors.forename: Julia
authors.initials: J
authors.lastname: Gutiérrez Seijas
authors.affiliation: Dpto. Química Inorgánica I, Facultad CC. Químicas, Universidad Complutense de Madrid , 28040 Madrid, Spain.
authors.forename: Jesús
authors.initials: J
authors.lastname: Prado-Gonjal
authors.affiliation: Dpto. Química Inorgánica I, Facultad CC. Químicas, Universidad Complutense de Madrid , 28040 Madrid, Spain.
authors.forename: David
authors.identifier: http://orcid.org/0000-0003-0452-2482
authors.initials: D
authors.lastname: Ávila Brande
authors.affiliation: Department of Physics, University of Durham , South Road, Durham DH1 3LE, United Kingdom.
authors.forename: Ian
authors.initials: I
authors.lastname: Terry
authors.affiliation: Dpto. Química Inorgánica I, Facultad CC. Químicas, Universidad Complutense de Madrid , 28040 Madrid, Spain.
authors.forename: Emilio
authors.initials: E
authors.lastname: Morán
authors.affiliation: Dpto. Física Aplicada III, GFMC, Facultad CC. Físicas, Universidad Complutense de Madrid , 28040 Madrid, Spain.
authors.forename: Rainer
authors.identifier: http://orcid.org/0000-0002-8344-8403
authors.initials: R
authors.lastname: Schmidt