title: Marinite Li2M(SO4)2 (M = Co, Fe, Mn) and Li1Fe(SO4)2: model compounds for super-super-exchange magnetic interactions.
abstract: New materials initially designed for battery electrodes are often of interest for magnetic study, because their chemical compositions include 3d transition metals. We report here on the magnetic properties of marinite phases Li2M(SO4)2 (M = Fe, Co, Mn) and Li1Fe(SO4)2, which all order antiferromagnetically at low temperature. From neutron powder diffraction, we propose a model for their ground-state magnetic structures. The magnetism of marinite Li2M(SO4)2 compounds unambiguously results from super-super-exchange interactions; therefore, these materials can be considered as a model case for which the Goodenough-Kanamori-Anderson rules can be tested.
authors: Laboratoire de Réactivité et Chimie des Solides (LRCS), Université de Picardie Jules Verne , CNRS UMR 7314, 33 rue Saint Leu, 80039 Amiens cedex, France.
authors: Marine
authors: M
authors: Reynaud
authors: Gwenaëlle
authors: G
authors: Rousse
authors: Jean-Noël
authors: JN
authors: Chotard
authors: Juan
authors: J
authors: Rodríguez-Carvajal
authors: Jean-Marie
authors: JM
authors: Tarascon