Electron energy loss spectroscopy determination of Ti oxidation state at the (001) LaAlO3/SrTiO3 interface as a function of LaAlO3 growth conditions

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dc.creatorMaurice, Jean-Luc
dc.creatorHerranz, Gervasi
dc.creatorColliex, Christian
dc.creatorDevos, Isabelle
dc.creatorCarrétéro, Cécile
dc.creatorBarthelemy, Agnès
dc.creatorBouzehouane, Karim
dc.creatorFusil, Stéphane
dc.creatorImhoff, Dominique
dc.creatorJacquet, Éric
dc.creatorJomard, François
dc.creatorBallutaud, Dominique
dc.creatorBasletic, Mario
dc.date2007-12-03
dc.date.accessioned2026-07-07T09:25:28Z
dc.date.available2026-07-07T09:25:28Z
dc.descriptionAt the (001) interface between the two band-insulators LaAlO3 and SrTiO3, a high-mobility electron gas may appear, which has been the object of numerous works over the last four years. Its origin is a subject of debate between the interface polarity and unintended doping. Here we use electron energy loss 'spectrum images', recorded in cross-section in a scanning transmission electron microscope, to analyse the Ti3+ ratio, characteristic of extra electrons. We find an interface concentration of Ti3+ that depends on growth conditions.
dc.description6 pages
dc.identifierhttps://arxiv.org/abs/0712.0223
dc.identifierhttp://arxiv.org/abs/0712.0223
dc.identifierEurophysics Letters (EPL) 82 (2008) 17003
dc.identifierdoi:10.1209/0295-5075/82/17003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/156416
dc.subjectMaterials Science
dc.titleElectron energy loss spectroscopy determination of Ti oxidation state at the (001) LaAlO3/SrTiO3 interface as a function of LaAlO3 growth conditions
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