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Título: | Crystal structure and magnetic and magnetocaloric properties of cobalt hydroxychlorides Co2(OH)4–xClx |
Autor: | Song, S. H.; Alonso, J. A. CSIC ORCID; Fernández-Díaz, M. T.; Lim, S. H. | Palabras clave: | Magnetic frustration Transition metals Structure elucidation Magnetic properties Cobalt |
Fecha de publicación: | 26-abr-2017 | Editor: | John Wiley & Sons | Citación: | European Journal of Inorganic Chemistry 2017(16): 2289-2294 (2017) | Resumen: | A series of isostructural cobalt hydroxychloride salts with the formula Co(OH)Cl were fabricated by using a precipitation method from aqueous solutions of CoCl and NaOH with different mixing ratios. The crystal structure was resolved from neutron powder diffraction data, including the location of H atoms of the hydroxide groups. The structure (space group R3m) consists of an open network of edge-sharing CoO and CoOCl octahedra, forming intercrossed 1D channels where the hydrogen atoms reside. Unusually high values of the magnetic entropy change were observed for all samples, probably due to the geometrically frustrated magnetic structure; for example, the magnetic entropy change was 8.3 J/kg K for the sample with Co/Cl > 2.5 at 10 K in a magnetic field change of 20 kOe. | Versión del editor: | https://doi.org/10.1002/ejic.201700104 | URI: | http://hdl.handle.net/10261/188346 | DOI: | 10.1002/ejic.201700104 | Identificadores: | doi: 10.1002/ejic.201700104 e-issn: 1099-0682 issn: 1434-1948 |
Aparece en las colecciones: | (ICMM) Artículos |
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