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Characterization of RScO3, LuFe2O4 and M72Fe30 based molecules by x-ray spectroscopic techniques

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https://osnadocs.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2013040810750
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DC ElementWertSprache
dc.contributor.advisorapl. Prof. Dr. Manfred Neumann
dc.creatorDerks, Christine
dc.date.accessioned2013-04-08T07:34:05Z
dc.date.available2013-04-08T07:34:05Z
dc.date.issued2013-04-08T07:34:05Z
dc.identifier.urihttps://osnadocs.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2013040810750-
dc.description.abstractThis thesis gives a detailed overview about the electronic and magnetic structure of three different kinds of 3d-transition metal based materials with potential for possible future applications. The presented materials are a series of “high-k” rare-earth scandates, RScO3 (R=Pr, Nd, Sm, Eu, Gd, Tb and Dy), the muliferroic layered oxide LuFe2O4, and three iron-based magnetic polyoxometalates of the type {(M)M5}Fe30 (M =Mo,W). The samples are examined by several different x-ray spectroscopic techniques and complementary theoretical approaches, namely multiplet calculations and first principles electronic structure calculations, respectively. The occupied electronic states are determined by photoelectron spectroscopy (XPS) and x-ray emission spectroscopy (XES). The unoccupied states are investigated by x-ray absorption spectroscopy (XAS). X-ray magnetic circular dichroim (XMCD) is used to get the element specific magnetic moment of the materials, and these results are compared to SQUID measurements.eng
dc.subjectRöntgenspektroskopieger
dc.subjectMultiferroicseng
dc.subjectSeltene Erdenger
dc.subjectPolyoxometalateger
dc.subject.ddc530 - Physik
dc.titleCharacterization of RScO3, LuFe2O4 and M72Fe30 based molecules by x-ray spectroscopic techniqueseng
dc.typeDissertation oder Habilitation [doctoralThesis]-
thesis.locationOsnabrück-
thesis.institutionUniversität-
thesis.typeDissertation [thesis.doctoral]-
thesis.date2013-03-01-
dc.contributor.refereeProf. Dr. Joachim Wollschläger
dc.subject.bk33.61 - Festkörperphysik
dc.subject.bk33.05 - Experimentalphysik
vCard.ORGFB4
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