Magnetic and thermoelectric properties of B-substituted NaCoO2

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dc.authoridDemirel, Serkan/0000-0003-1158-4956
dc.authoridAltin, Emine/0000-0002-2187-4036
dc.authorwosidALTIN, EMINE/AHE-9774-2022
dc.authorwosidbayri, ali/AAA-5966-2021
dc.authorwosidDemirel, Serkan/AAA-2133-2020
dc.authorwosidOz, Erdinc/GXW-0937-2022
dc.contributor.authorAltin, Emine
dc.contributor.authorOz, Erdinc
dc.contributor.authorDemirel, Serkan
dc.contributor.authorBayri, Ali
dc.date.accessioned2024-08-04T20:41:08Z
dc.date.available2024-08-04T20:41:08Z
dc.date.issued2015
dc.departmentİnönü Üniversitesien_US
dc.description.abstractWe report the structural, electrical, thermal and magnetic properties of NaCo1-xBxO2 from 300 K down to 5 K. XRD analysis shows that B ions successfully incorporate in the crystal structure for x < 0.25. The resistivity of the samples increases with increasing B content and the transport mechanism change for x = 0.5. The highest thermopower value is obtained for x = 0.5 sample, and the thermoelectric behavior at low temperature is explained by Mott approximation. The experimentally obtained thermal conductivity data are analyzed by this model including the carrier thermal term, kappa(c), and the lattice thermal conductivity term, kappa(L). We found that phonon-phonon interaction and point defect contribution to kappa are affected by the B content and the temperature. The Co valance states are analyzed by Heike formula, and the effective magnetic moment is determined by these values. The chi-T curves of the samples are fitted by Curie-Weiss law, and the obtained mu(eff) values match well with the theoretically calculated values (0.9 mu(B)/Co). We observed a strong correlation between magnetic properties and thermopower.en_US
dc.description.sponsorshipTUBITAK (The Scientific and Technical Research Council of Turkey) [TUBITAK 112M487]; Inonu University research council [BAP-2013-76, BAP-2014-02]en_US
dc.description.sponsorshipThis study was supported by TUBITAK (The Scientific and Technical Research Council of Turkey) under Grant No. TUBITAK 112M487 and Inonu University research council under Contract Number BAP-2013-76 and BAP-2014-02.en_US
dc.identifier.doi10.1007/s00339-015-9089-0
dc.identifier.endpage1196en_US
dc.identifier.issn0947-8396
dc.identifier.issn1432-0630
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-84939973708en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage1187en_US
dc.identifier.urihttps://doi.org/10.1007/s00339-015-9089-0
dc.identifier.urihttps://hdl.handle.net/11616/96942
dc.identifier.volume119en_US
dc.identifier.wosWOS:000354189200049en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofApplied Physics A-Materials Science & Processingen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectNaxcoo2en_US
dc.subjectPoweren_US
dc.subjectMicrostructureen_US
dc.subjectThermopoweren_US
dc.subjectEnhancementen_US
dc.subjectNaco2o4en_US
dc.subjectOxideen_US
dc.subjectNien_US
dc.subjectCoen_US
dc.titleMagnetic and thermoelectric properties of B-substituted NaCoO2en_US
dc.typeArticleen_US

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