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LiMn2-xTixO4 spinel-type compounds (x ≤ 1): Structural, electrical and magnetic properties

Krins, N and Hatert, F and Traina, K and Dusoulier, L and Molenberg, I and Fagnard, JF and Vanderbemden, P and Rulmont, A and Cloots, R and Vertruyen, B (2006) LiMn2-xTixO4 spinel-type compounds (x ≤ 1): Structural, electrical and magnetic properties. Solid State Ionics, 177. pp. 1033-1040. ISSN 0167-2738

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Abstract

LiMn2-xTixO4 compounds with 0 ≤ x ≤ 1 were prepared by solid state reaction and Pechini technique. Powder X-ray diffraction showed that all samples crystallize with the spinel crystal structure (S.G. Fd3-m). The cubic unit-cell parameter increases with the Ti content. The influence of the Ti content and cationic distribution on the magnetic properties of the compounds was studied by measuring the temperature and magnetic field dependences of the magnetization: substitution by non-magnetic d0 Ti4+ ions appeared to weaken the magnetic interactions between the manganese ions. The electrical properties of LiMnTiO4 were studied by AC impedance spectroscopy and DC polarisation measurements, which revealed the electronic character of the conduction process. © 2006 Elsevier B.V. All rights reserved.

Item Type: Article
Uncontrolled Keywords: Charge-discharge test Crystal structure Impedance spectroscopy Magnetic properties Ti-doped LiMn2O4
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:28
Last Modified: 08 Dec 2014 02:24
DOI: 10.1016/j.ssi.2006.04.001