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 Synthesis, structure and magnetic behaviour of mixed metal leucophosphite
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/6830

title: Synthesis, structure and magnetic behaviour of mixed metal leucophosphite
authors: Shi, Fa-Nian
dos Santos, Antonio Moreira
Cunha-Silva, Luis
Costa, Benilde F. O.
Klinowski, Jacek
Paz, Filipe A. Almeida
Amaral, Vitor S.
Rocha, Joao
Trindade, Tito
keywords: Hydrothermal synthesis
Leucophosphite
Ferric phosphate
Vanadium
Magnetism
issue date: 2008
publisher: Elsevier
abstract: A synthetic analogue of leucophosphite, an iron phosphate, was synthesized hydrothermally at 180 °C and its chemical composition determined to be {K[(FeV)(PO4)2(OH)(H2O)]·H2O}. The compound crystallizes in the monoclinic P21/c space group, with a=9.7210(19) Å, b=9.6500(19) Å, c=12.198(4) Å and β=128.569(18)°. While the original all-iron compound is reported to be antiferromagnetic, the inclusion of substitutional vanadium(III) ions renders the structure ferrimagnetic. Diffraction studies and magnetic characterization show that iron and vanadium are disordered throughout the crystallographic sites. The magnetic behaviour of this system was interpreted in terms of a classic ferrimagnetic mean field model, consisting of two antiferromagnetically coupled non-crystallographic “sublattices”.
URI: http://hdl.handle.net/10773/6830
ISSN: 0022-4596
publisher version/DOI: http://dx.doi.org/10.1016/j.jssc.2008.02.027
source: Journal of Solid State Chemistry
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