Verteilung und Valenz der Kationen im Spinellsystem ZnFeGaO4-Fe2GaO4

dc.contributor.authorRabbani, Sima
dc.contributor.authorRiedel, Erwin
dc.date.accessioned2018-11-10T16:34:57Z
dc.date.available2018-11-10T16:34:57Z
dc.date.issued1996
dc.description.abstractFor the spinel system Zn1-ϰFe-λGaϰ-λ(Fe1+λGa1-λ)O4 the index λ has been determined by X-ray measurements: λ = 0 in the region 0 ≤ ϰ ≤ 0,35; the increase of λ to 0,62 within 0,35 ≤ χ ≤ 1 is nearly linear. The distribution of Fe2+ and Fe3+ ions over the lattice sites has been derived from lattice constants and ionic distances, and also by Mössbauer spectroscopy. In the spinels with ϰ < 0,3 the tetrahedral sites are preferably occupied by Fe2+ ions, for x > 0,5 Fe3+ ions dominate. At ϰ = 0,4 the occupation of the lattice sites by iron ions is statistical, the high temperature Mössbauer spectrum shows a single line only. All spinels are n-type hopping conductors mainly conducting via the octahedral sites.en
dc.identifier.eissn1865-7117
dc.identifier.issn0932-0776
dc.identifier.urihttps://depositonce.tu-berlin.de//handle/11303/8477
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-7623
dc.language.isode
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftende
dc.subject.otheriron gallium spineisen
dc.subject.othercation distributionen
dc.subject.othervalence distributionen
dc.subject.otherMössbauer spectraen
dc.subject.otherSeebeck coefficientsen
dc.titleVerteilung und Valenz der Kationen im Spinellsystem ZnFeGaO4-Fe2GaO4de
dc.title.translatedDistribution and Valence of the Cations in the Spinel System ZnFeGaO4-Fe2GaO4en
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1515/znb-1996-0111
dcterms.bibliographicCitation.issue1
dcterms.bibliographicCitation.journaltitleZeitschrift für Naturforschung Bde
dcterms.bibliographicCitation.originalpublishernameDe Gruyteren
dcterms.bibliographicCitation.originalpublisherplaceBerlinen
dcterms.bibliographicCitation.pageend51
dcterms.bibliographicCitation.pagestart47
dcterms.bibliographicCitation.volume51
tub.accessrights.dnbfree
tub.affiliationFak. 2 Mathematik und Naturwissenschaften>Inst. Chemiede
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.instituteInst. Chemiede
tub.publisher.universityorinstitutionTechnische Universität Berlinde
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