Tailored microstructures, optical and magnetic qualities of strontium hexaferrites: Consequence of Tm3+ and Tb3+ ions Co-substitution

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dc.authoridNawaz, Muhammad / 0000-0001-9016-9229
dc.authoridSertkol, Murat / 0000-0002-7974-2415
dc.authoridAlmessiere, Munirah Abdullah / 0000-0003-1651-3591
dc.authoridSlimani, Yassine / 0000-0002-2579-1617
dc.authoridBaykal, Abdulhadi / 0000-0002-5205-0937
dc.authoridAli, Sadaqat / 0000-0001-6822-2281
dc.authoridGüngüneş, Hakan / 0000-0002-5803-3193
dc.authorwosidNawaz, Muhammad / AAF-9687-2019
dc.authorwosidSertkol, Murat / ABB-3762-2021
dc.authorwosidAlmessiere, Munirah Abdullah / A-3325-2015
dc.authorwosidSlimani, Yassine / E-5054-2017
dc.authorwosidBaykal, Abdulhadi / AAF-9826-2019
dc.contributor.authorAlmessiere, Munirah Abdullah
dc.contributor.authorSlimani, Yassine
dc.contributor.authorTashkandi, Nabiha A.
dc.contributor.authorGüngüneş, Hakan
dc.contributor.authorSertkol, Murat
dc.contributor.authorNawaz, Muhammad
dc.contributor.authorErcan, İsmail
dc.date.accessioned2021-11-01T15:01:58Z
dc.date.available2021-11-01T15:01:58Z
dc.date.issued2019
dc.departmentHitit Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümü
dc.description.abstractTerbium (Tb) and Thulium (Tm) co-doped strontium hexaferrites (SHFs), with composition SrFe12-2xTbxTmxO19 (0.00 <= x <= 0.04), were prepared via sol-gel auto-combustion method. The effect of Tb3+ and Tm3+ (as codopants) on SHFs were investigated in detail. XRD pattern of the prepared SHFs revealed the formation of M-type SHFs. A secondary phase of Fe2O3 starts to appear for x >= 0.02. The optical band gaps (E-g) of the prepared SHFs were widened with the increase in doping levels. Mossbauer study showed that the Tm3+ and Tb3+ ions have the preference to occupy 12k and 2a octahedral sites. M(H) measurements were recorded at room temperature (RT; T = 300 K) and low temperature (T = 10 K). The hysteresis loops of various SHFs revealed their ferrimagnetic (FM) nature at both RT and 10 K. Magnetic parameters including saturation magnetization (M-s), remanence (M-r), coercivity (H-c), squareness ratio (SQR = M-r/M-s) and magnetic moment (n(B)) were determined. Compared to the pristine (undoped) sample, lower content of Tm3+ and Tb3+ co-substitution (x = 0.01) improves significantly the magnetic properties of SHFs. With further increasing co-substitution contents (x > 0.01), an impurity phase appears and as a result the magnetization reduces. The observed SQR values of the proposed SHFs above 0.5 clearly indicated their single domain character with uniaxial magnetocrystalline anisotropy. Our systematic synthesis strategy and characterization may constitute a basis for achieving high quality co-doped SHFs in a customized way.
dc.description.sponsorshipInstitute for Research & Medical onsultations of Imam Abdulrahman Bin Faisal University (IAU - Saudi rabia) [2017-IRMC-S-3, 2018 MC-S-2]en_US
dc.description.sponsorshipAuthors are grateful to the Institute for Research & Medical onsultations (Projects Application No. 2017-IRMC-S-3 and 2018 MC-S-2) of Imam Abdulrahman Bin Faisal University (IAU - Saudi rabia) for financial and technical supports.en_US
dc.identifier.citationAlmessiere, M. A., Slimani, Y., Tashkandi, N. A., Güngüneş, H., Sertkol, M., Nawaz, M., ... & Ercan, I. (2019). Tailored microstructures, optical and magnetic qualities of strontium hexaferrites: consequence of Tm3+ and Tb3+ ions Co-substitution. Ceramics International, 45(17), 21385-21394.
dc.identifier.doi10.1016/j.ceramint.2019.07.126
dc.identifier.endpage21394en_US
dc.identifier.issn0272-8842
dc.identifier.issn1873-3956
dc.identifier.issue17en_US
dc.identifier.scopus2-s2.0-85069718489
dc.identifier.scopusqualityQ1
dc.identifier.startpage21385en_US
dc.identifier.urihttps://doi.org/10.1016/j.ceramint.2019.07.126
dc.identifier.urihttps://hdl.handle.net/11491/6784
dc.identifier.volume45en_US
dc.identifier.wosWOS:000493212500041
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorGüngüneş, Hakan
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofCeramics International
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSr-hexaferritesen_US
dc.subjectCo-substitutionen_US
dc.subjectMossbaueren_US
dc.subjectOptical Propertiesen_US
dc.subjectFerrimagneticen_US
dc.subjectSuper-exchange Interactionen_US
dc.titleTailored microstructures, optical and magnetic qualities of strontium hexaferrites: Consequence of Tm3+ and Tb3+ ions Co-substitution
dc.typeArticle

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