Anisotropic magnetic and electrical properties in textured single phase multiferroic Bi4.5Sm0.5Ti3Fe0.8Cr0.2O15 ceramics

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dc.check.date2027-02-22
dc.contributor.authorPritam, Anuragen
dc.contributor.authorAbdi, Gisyaen
dc.contributor.authorHussian, Sabiren
dc.contributor.authorSikora, Marcinen
dc.contributor.funderShiv Nadar Foundationen
dc.date.accessioned2025-03-12T11:56:38Z
dc.date.available2025-03-12T11:56:38Z
dc.date.issued2025en
dc.description.abstractHere we report the synthesis of single-phase Cr and Sm doped Aurivillius Bi5Ti3FeO15 (SBTFO) ceramics using conventional solid-state route method. The prepared composition exhibits the anticipated four-layered Aurivillius structure having an orthorhombic crystal structure and A21am space group, as confirmed by the XRD in conjunction with the Rietveld refinement. Additionally, the doping-induced crystallite size and strain were analyzed using a Williamson Hall plot, whereas cross-sectional FESEM revealed the plate-like structure having an average crystallite size of 0.5 μm. The SBTFO ceramics demonstrate exemplary ferroelectric and ferromagnetic properties with remnant polarization (2Pr) and remnant magnetization (2Mr) of 0.96 μC/cm2 and 0.06 emug−1, respectively. The temperature and frequency dependence of dielectric study reveals a Maxwell-Wagner relaxation with a higher loss in a low frequency regime perhaps due to leakage current in the system. The frequency dependent AC conductivity investigation adheres to Jonscher's formulation, indicating that the long-range hopping mechanism governs the conduction process, with an activation energy of 0.56 eV. Non-Debye type relaxation mechanism coupled with negative temperature coefficient of resistance (NTCR) behavior was specified by temperature dependent impedance spectroscopy, whereas the modulus spectroscopy revealed the multiple relaxation phenomena. Furthermore, the impedance and modulus processes computed activation energy of 0.74 eV and 0.32 eV, respectively, indicate the involvement of distinct charge carriers in the relaxation and conduction processes. The present work illustrates a versatile approach for designing high-performance, room-temperature multiferroic materials, demonstrating their potential for next-generation industrial applications, including non-volatile memory, spintronic devices, and multifunctional sensors.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPritam, A., Abdi, G., Hussian, S. and Sikora, M. (2025) ‘Anisotropic magnetic and electrical properties in textured single phase multiferroic Bi4.5Sm0.5Ti3Fe0.8Cr0.2O15 ceramics’, Ceramics International, S0272884225010016 (11pp). https://doi.org/10.1016/j.ceramint.2025.02.318en
dc.identifier.doihttps://doi.org/10.1016/j.ceramint.2025.02.318en
dc.identifier.eissn1873-3956en
dc.identifier.endpage11en
dc.identifier.issn0272-8842en
dc.identifier.journaltitleCeramics Internationalen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/17169
dc.language.isoenen
dc.publisherElsevieren
dc.rights© 2025, Elsevier Ltd and Techna Group S.r.l. All rights are reserved, including those for text and data mining, AI training, and similar technologies.en
dc.subjectRietveld refinementen
dc.subjectMagnetizationen
dc.subjectMaxwell-wagner distributionen
dc.subjectCole-cole ploten
dc.subjectActivation energyen
dc.titleAnisotropic magnetic and electrical properties in textured single phase multiferroic Bi4.5Sm0.5Ti3Fe0.8Cr0.2O15 ceramicsen
dc.typeArticle (peer-reviewed)en
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