Julia Gutiérrez Seijas
Microwave-Assisted Synthesis, Microstructure, and Magnetic Properties of Rare-Earth Cobaltites
Gutiérrez Seijas, Julia; Prado-Gonjal, Jesús; Ávila Brande, David; Terry, Ian; Morán, Emilio; Schmidt, Rainer
Authors
Jesús Prado-Gonjal
David Ávila Brande
Dr Ian Terry ian.terry@durham.ac.uk
Associate Professor
Emilio Morán
Rainer Schmidt
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. LaCoO3 is 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.
Citation
Gutiérrez Seijas, J., Prado-Gonjal, J., Ávila Brande, D., Terry, I., Morán, E., & Schmidt, R. (2017). Microwave-Assisted Synthesis, Microstructure, and Magnetic Properties of Rare-Earth Cobaltites. Inorganic Chemistry, 56(1), 627-633. https://doi.org/10.1021/acs.inorgchem.6b02557
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 13, 2016 |
Online Publication Date | Dec 21, 2016 |
Publication Date | Jan 3, 2017 |
Deposit Date | Feb 14, 2017 |
Publicly Available Date | Dec 21, 2017 |
Journal | Inorganic Chemistry |
Print ISSN | 0020-1669 |
Electronic ISSN | 1520-510X |
Publisher | American Chemical Society |
Peer Reviewed | Peer Reviewed |
Volume | 56 |
Issue | 1 |
Pages | 627-633 |
DOI | https://doi.org/10.1021/acs.inorgchem.6b02557 |
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Copyright Statement
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Inorganic Chemistry, copyright © 2016 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.inorgchem.6b02557.
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