Electronic and magnetic properties of boron substituted CuFeO2 delafossite oxide

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dc.contributor.authorEzircan, Ali
dc.contributor.authorAslan, M. Selim
dc.contributor.authorMiyazaki, Hidetoshi
dc.contributor.authorAkyol, Mustafa
dc.contributor.authorOzkendir, O. Murat
dc.contributor.authorEkicibil, Ahmet
dc.contributor.authorOzturk, Hakan
dc.date.accessioned2025-01-06T17:43:32Z
dc.date.available2025-01-06T17:43:32Z
dc.date.issued2024
dc.description.abstractSynchrotron x-ray diffraction (SR-XRD) and X-ray absorption fine structure spectroscopy (XAFS) were used to investigate the crystal and electronic properties of boron-substituted CuFeO2 material at room temperature. Without boron substitution, the polycrystalline structures of the trigonal (rhombohedral) Rm' over bar m' CuFeO2 (87.7%) and hexagonal 'P63/mmc' (12.3%), which were also present in each sample but in different proportions, were utilised to identify the base material. XRD patterns revealed that, beyond 10% boron substitution, the metal-oxygen bonds (Fe-O and Cu-O) weakened, resulting in the formation of new tetragonal 'I41/amd' CuFe2O4 crystals. Although the CuFeO2 structure was preserved, it is conceivable that the presence of other crystal structures could lead to the formation of new features. This state arose as a result of CuFe2O4 crystallization and the impact of boron activity on the surrounding oxygen structures. By measuring magnetisation at both swept temperatures (10-300 K) and applied magnetic fields (+/- 30 kOe), the magnetic properties of the samples were investigated. In the 10-300 K temperature range, the polycrystalline samples exhibit a ferromagnetic property without a magnetic phase transition. This suggests that replacing B with Fe in CuFe(1-x)BxO(2 )does not influence the primary magnetic property of CuFeO2. The samples' saturation magnetisation (Ms) values gradually fall as the B substitution content increases with Fe. This is because there's a chance that the non-transition metal B in CuFe1-xBxO(2) will boost antiferromagnetic superexchange Cu-O interactions while lowering the p-d exchange interaction.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [53325897-115.02-152809]
dc.description.sponsorshipThis study is partly supported by the 2219 program of The Scientific and Technological Research Council of Turkey (TUBITAK) with Ref. No. 53325897-115.02-152809.
dc.identifier.doi10.1080/14786435.2024.2337197
dc.identifier.endpage536
dc.identifier.issn1478-6435
dc.identifier.issn1478-6443
dc.identifier.issue11-12
dc.identifier.scopus2-s2.0-85189975544
dc.identifier.scopusqualityQ3
dc.identifier.startpage519
dc.identifier.urihttps://doi.org/10.1080/14786435.2024.2337197
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2693
dc.identifier.volume104
dc.identifier.wosWOS:001197034200001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofPhilosophical Magazine
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectMagnetic materials
dc.subjectoxides
dc.subjectelectronic structure
dc.subjectabsorption spectroscopy
dc.titleElectronic and magnetic properties of boron substituted CuFeO2 delafossite oxide
dc.typeArticle

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