Marinite Li2M(SO4)2 (M = Co, Fe, Mn) and Li1Fe(SO4)2: Model Compounds for Super-Super-Exchange Magnetic Interactions

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• 作者：Marine Reynaud ; Gwena毛lle Rousse ; Jean-No毛l Chotard ; Juan Rodr铆guez-Carvajal ; Jean-Marie Tarascon
• 刊名：Inorganic Chemistry
• 出版年：2013
• 出版时间：September 16, 2013
• 年：2013
• 卷：52
• 期：18
• 页码：10456-10466
• 全文大小：625K
• 年卷期：v.52,no.18(September 16, 2013)
• ISSN：1520-510X

文摘

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鈥揔anamori鈥揂nderson rules can be tested.