Investigation of the soft-magnetic properties of CoZrTaB laminated cores by dielectric layer tuning

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dc.contributor.authorWei, Guannanen
dc.contributor.authorDas, Rajasreeen
dc.contributor.authorLordan, Danielen
dc.contributor.authorLorenc, Mareken
dc.contributor.authorClark, Barryen
dc.contributor.authorHurley, David P. F.en
dc.contributor.authorHayes, Mikeen
dc.contributor.authorO'Mathuna, Cianen
dc.contributor.authorSai, Ranajiten
dc.contributor.authorMcCloskey, Paulen
dc.contributor.funderTokyo Electron Magnetic Solutions Ltden
dc.contributor.funderEnterprise Irelanden
dc.date.accessioned2024-04-09T13:03:15Z
dc.date.available2024-04-09T13:03:15Z
dc.date.issued2023-09-26en
dc.description.abstractSoft magnetic properties of thin films for use as a core material are critical for the realization of future miniaturized electromagnetic devices operating at frequencies of tens or hundreds of megahertz. Laminated stacks consisting of alternate thin layers of magnetic material and dielectric material are widely used to suppress eddy current losses that dominate, especially at a higher frequency of operation. Thus, identifying a suitable dielectric layer, its optimum thickness, and the understanding of its effect on the performance of the laminated core is important. In this letter, six different CoZrTaB (CZTB) laminated cores are reported, featuring a variety of dielectric materials (AlN, SiN, Al 2 O 3 , and oxide CZTB) and/or dielectric thickness (5, 15, and 50 nm). This study shows that stacks with different dielectric materials have a varied residual stress that plays an important role in inducing magnetic anisotropy, thus affecting the permeability. CZTB stacks with oxide CZTB dielectric show the best combination of high permeability, low coercivity, and low losses at high frequency.en
dc.description.sponsorshipTEL (Tokyo Electron) Magnetic Solutions Ltd. and in part by Enterprise Ireland - Innovation Partnership Pro gramme under Contract EI-IP20200912.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid7100305en
dc.identifier.citationWei, G., Das, R., Lordan, D., Lorenc, M., Clarke, B., Hurley, D. P., Hayes, M., O'Mathuna, C., Sai, R. and McCloskey, P. (2023) 'Investigation on the soft-magnetic properties of CoZrTaB laminated cores by dielectric layer tuning', IEEE Magnetics Letters, 14, 7100305 (5pp). https://doi.org/10.1109/LMAG.2023.3319289en
dc.identifier.doihttps://doi.org/10.1109/LMAG.2023.3319289en
dc.identifier.eissn1949-3088en
dc.identifier.endpage5en
dc.identifier.issn1949-307Xen
dc.identifier.journaltitleIEEE Magnetics Lettersen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/15779
dc.identifier.volume14en
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.rights© 2023, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.subjectSoft magnetic materialsen
dc.subjectDielectric materialen
dc.subjectMagnetics on siliconen
dc.subjectSoft magnetic laminated stacksen
dc.subjectThin-film technologyen
dc.titleInvestigation of the soft-magnetic properties of CoZrTaB laminated cores by dielectric layer tuningen
dc.typeArticle (peer-reviewed)en
oaire.citation.volume14en
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