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Ammonium-cobalt-nickel phosphates, NH4[Co1-xNixPO4]·H2O

AuthorsTorre-Fernández, Laura; Trobajo, Camino ; Pedro, Imanol de; Alfonso, Belén F.; Fabelo, Óscar; Blanco, Jesús A.; García, José R. ; García-Granda, Santiago
Issue Date2013
CitationJournal of Solid State Chemistry 206: 75-84 (2013)
AbstractThe ammonium-cobalt-nickel phosphates, NH4[Co 1-xNixPO4]·H2O (x=0.00, 0.34, 0.59, 0.70, 1.00), and the deuterated forms, ND4[Co 1-xNixPO4]·D2O (x=0.00, 0.38, 0.48, 0.69, 0.85), have been synthesized under mild hydrothermal conditions and characterised using X-ray and neutron diffraction, chemical and thermal analysis, and magnetic measurements. Their crystal structures, including hydrogen positions, were determined by Rietveld refinement using single-crystal X-ray and neutron powder diffraction data. The space group of these orthorhombic crystals modifies as a function of their composition. The magnetic susceptibility and magnetization measurements of these ammonium-cobalt-nickel phosphates show antiferromagnetic behaviour, and the Neel temperature evolves from 5.5 K (x=0.00) up to 13.2 K (x=1.00). © 2013 Elsevier Inc.
Identifiersdoi: 10.1016/j.jssc.2013.07.039
issn: 0022-4596
Appears in Collections:(ICMA) Artículos
(CINN) Artículos
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