ORBi: Krins Natasha - LiMn2-xTixO4 spinel-type compounds (x <= 1): Structural, electrical and magnetic properties

Reference : LiMn2-xTixO4 spinel-type compounds (x <= 1): Structural, electrical and magnetic propert...


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Materials science & engineering Physical, chemical, mathematical & earth Sciences : Physics Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/13504

Title :	LiMn2-xTixO4 spinel-type compounds (x <= 1): Structural, electrical and magnetic properties
Language :	English
Author, co-author :	Krins, Natasha [Université de Liège - ULg > > Chimie inorganique structurale >]
	Hatert, Frédéric [Université de Liège - ULg > Département de géologie > Minéralogie et cristallochimie >]
	Traina, Karl [Université de Liège - ULg > > Chimie inorganique structurale >]
	Dusoulier, Laurent [Université de Liège - ULg > > > > Chimie inorganique structurale > >]
	Molenberg, Isabel [Université de Liège - ULg > > > > Capteurs et systèmes de mesures électriques > >]
	Fagnard, Jean-François [Université de Liège - ULg > Dép. d'électric.]
	Vanderbemden, Philippe [Université de Liège - ULg > > Capteurs et systèmes de mesures électriques >]
	Rulmont, André [Université de Liège - ULg > > Chimie inorganique structurale >]
	Cloots, Rudi [Université de Liège - ULg > > Chimie inorganique structurale >]
	Vertruyen, Bénédicte [Université de Liège - ULg > > Chimie inorganique structurale >]
Publication date :	Apr-2006
Journal title :	Solid State Ionics
Publisher :	Elsevier Science Bv
Volume :	177
Issue/season :	11-12
Pages :	1033-1040
Audience :	International
ISSN :	0167-2738
City :	Amsterdam
Keywords :	[en] Ti-doped LiMn2O4 ; crystal structure ; magnetic properties ; impedance spectroscopy ; charge-discharge test
Abstract :	[en] LiMn2-xTixO4 compounds with 0.5 =<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. Fd3m). 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 d(0) 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. (c) 2006 Elsevier B.V. All rights reserved.
Research units :	Services Universitaires Pour la Recherche et les Applications Technologiques de Matériaux Électro-Céramiques, Composites, Supraconducteurs - SUPRATECS
Funders :	Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Union Européenne = European Union - UE = EU
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/13504
DOI :	10.1016/j.ssi.2006.04.001
Other URL :	http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TY4-4JXRWXX-5&_user=532038&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_version=1&_urlVersion=0&_userid=532038&md5=586fcfe5ce8212e93c97f7e10e081c34
Commentary :	Journal home page : http://www.elsevier.com/wps/find/journaldescription.cws_home/505677/description

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