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

✍ Scribed by N Douakha; M Holzapfel; E Chappel; G Chouteau; L Croguennec; A Ott; B Ouladdiaf

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
826 KB
Volume
163
Category
Article
ISSN
0022-4596

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✦ Synopsis

Mixed lithium+transition metal oxides LiFe 1؊x Co x O 2 (04x41) have been studied by powder neutron di4raction in the temperature range 1.5+100 K and at room temperature. The low-temperature data analysis of the high-6ux neutron di4raction patterns reveals an antiferromagnetic arrangement with a propagation vector k ‫؍‬ [0 0 1 2 ]. The value obtained for the magnetic moment of Fe 3 ؉ ions at 1.5 K, Fe 3 ؉ ‫؍‬ 3.9 B , is in good agreement with the value deduced from magnetization data and is also consistent with the high spin state of Fe 3 ؉ ion. The crystallographic structure was determined by both X-ray and high-resolution neutron di4raction measurements.

2002

Elsevier Science (USA)

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