Nuclear and Magnetic Structure of Layered LiFe1−xCoxO2 (0≤x≤1) Determined by High-Resolution Neutron Diffraction - Institut de chimie de la matière condensée de Bordeaux Accéder directement au contenu
Article Dans Une Revue Journal of Solid State Chemistry Année : 2002

Nuclear and Magnetic Structure of Layered LiFe1−xCoxO2 (0≤x≤1) Determined by High-Resolution Neutron Diffraction

Résumé

Mixed lithium-transition metal oxides LiFe1−xCoxO2 (0≤x≤1) have been studied by powder neutron diffraction in the temperature range 1.5-100 K and at room temperature. The low-temperature data analysis of the high-flux neutron diffraction patterns reveals an antiferromagnetic arrangement with a propagation vector k=[0 0 ½ ]. The value obtained for the magnetic moment of Fe3+ ions at 1.5 K, μFe3+=3.9 μB, is in good agreement with the value deduced from magnetization data and is also consistent with the high spin state of Fe3+ ion. The crystallographic structure was determined by both X-ray and high-resolution neutron diffraction measurements.

Dates et versions

hal-00418164 , version 1 (17-09-2009)

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N. Douakha, Mickaël Holzapfel, E. Chappel, G. Chouteau, Laurence Croguennec, et al.. Nuclear and Magnetic Structure of Layered LiFe1−xCoxO2 (0≤x≤1) Determined by High-Resolution Neutron Diffraction. Journal of Solid State Chemistry, 2002, 163 (2), pp. 406-411. ⟨10.1006/jssc.2001.9413⟩. ⟨hal-00418164⟩
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