Investigation of CuxGayCrzSe4 single crystals

DC FieldValueLanguage
dc.contributor.authorWiniarski, A
dc.contributor.authorOkonskaKozlowska, I
dc.contributor.authorHeimann, J
dc.contributor.authorNeumann, M
dc.date.accessioned2021-12-23T16:06:53Z-
dc.date.available2021-12-23T16:06:53Z-
dc.date.issued1996
dc.identifier.issn09258388
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/7598-
dc.description.abstractFrom X-ray photoelectron spectroscopy data and X-ray microprobe analysis the formula CuxGayCrzSe4 (x y z approximate to 3) for the investigated single crystals was determined. Replacement of Cu by Ga in tetrahedral sites of the spinel-type structure was observed. A negative chemical shift of the Cu 2p levels as well as an absence of Cu shake-up satellite lines was noticed. T-c dependency on the Ga content was found from susceptibility measurements. Effective and saturation magnetic moments at low concentrations of gallium (y < 0.16) were found to be higher than in CuCr2Se4. For gallium-rich samples the values of the moments decrease rapidly. The problem of metal valency in this system is discussed in relation to charge distribution. Covalency and stability of the spinel-type structure is also discussed.
dc.language.isoen
dc.publisherELSEVIER SCIENCE SA
dc.relation.ispartofJOURNAL OF ALLOYS AND COMPOUNDS
dc.subjectChemistry
dc.subjectChemistry, Physical
dc.subjectCOPPER
dc.subjectcovalency
dc.subjectCUCR2SE4
dc.subjectmagnetic susceptibility
dc.subjectMaterials Science
dc.subjectMaterials Science, Multidisciplinary
dc.subjectMetallurgy & Metallurgical Engineering
dc.subjectSPINELS
dc.subjectXPS
dc.titleInvestigation of CuxGayCrzSe4 single crystals
dc.typejournal article
dc.identifier.doi10.1016/0925-8388(95)01961-8
dc.identifier.isiISI:A1996TU18100015
dc.description.volume232
dc.description.issue1-2
dc.description.startpage63
dc.description.endpage66
dc.contributor.orcid0000-0002-0920-8452
dc.identifier.eissn18734669
dc.publisher.placePO BOX 564, 1001 LAUSANNE, SWITZERLAND
dcterms.isPartOf.abbreviationJ. Alloy. Compd.
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