Influence of Ge and Bi substitution on the magnetic and magnetocaloric properties of LaFe11.4Si1.6

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dc.authoridKolat, Veli Serkan/0000-0002-8864-5051
dc.authoridBayri, Nevzat/0000-0001-7105-7707
dc.authoridGençer, Hüseyin/0000-0002-2292-0751
dc.authoridKaya, Ali Onur/0000-0003-4220-1866;
dc.authorwosidAtalay, Selcuk/AAA-5095-2021
dc.authorwosidKolat, Veli Serkan/ABI-5280-2020
dc.authorwosidBayri, Nevzat/ABG-9663-2020
dc.authorwosidGençer, Hüseyin/ABG-9104-2020
dc.authorwosidKaya, Ali Onur/CAF-1175-2022
dc.authorwosidIzgi, tekin/ABH-5655-2020
dc.contributor.authorKolat, V. S.
dc.contributor.authorKaya, A. O.
dc.contributor.authorIzgi, T.
dc.contributor.authorGencer, H.
dc.contributor.authorBayri, N.
dc.contributor.authorAtalay, S.
dc.date.accessioned2024-08-04T20:32:24Z
dc.date.available2024-08-04T20:32:24Z
dc.date.issued2010
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIn this work, the magnetic and magnetocaloric properties of LaFe11.4S1.6-xGex (x = 0.05, 0.1 and 0.2) and La1-xBixFe11.4Si1.6 (x = 0, 0.1 and 0.2) compounds have been investigated. X-ray results indicate that the samples with lower Ge and Bi contents mainly consist of the NaZn13-type phase with a small amount of alpha-Fe impurity phase. The alpha-Fe impurity phase increases with increasing concentrations of Ge and Bi. The Curie temperature of the samples also increases slightly with increasing Ge and Bi contents. The spin-wave dispersion coefficient D, exchange constant J and average mean-square range of exchange interaction ()(1/2) have been calculated. The increase in Curie temperature is attributed to an increase in the average Fe-Fe distance and ferromagnetic interactions. The peak values of the magnetic entropy change vertical bar Delta S-m vertical bar are found to decrease with increasing Ge and Si contents. This is attributed to a change of the phase transition from first order to second order. The peak values of vertical bar Delta S-m vertical bar are 22.38 J/kg K for LaFe11.4Si1.6, 12.58 J/kg K for LaFe11.4Si1.5Ge0.1 and 14.25 J/kg K for La0.9Bi0.1Fe11.4Si1.6 at a magnetic field of 6 T.en_US
dc.description.sponsorshipInonu University [2009/31]en_US
dc.description.sponsorshipThis work was supported by Inonu University Research Fund under Project Number 2009/31.en_US
dc.identifier.endpage1134en_US
dc.identifier.issn1454-4164
dc.identifier.issn1841-7132
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-77953069260en_US
dc.identifier.scopusqualityQ4en_US
dc.identifier.startpage1129en_US
dc.identifier.urihttps://hdl.handle.net/11616/95048
dc.identifier.volume12en_US
dc.identifier.wosWOS:000279165400025en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherNatl Inst Optoelectronicsen_US
dc.relation.ispartofJournal of Optoelectronics and Advanced Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectNaZn13-type intermetallics compoundsen_US
dc.subjectMagnetocaloric effecten_US
dc.subjectMagnetic entropy changeen_US
dc.subjectLaFeSien_US
dc.titleInfluence of Ge and Bi substitution on the magnetic and magnetocaloric properties of LaFe11.4Si1.6en_US
dc.typeArticleen_US

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