Enhanced magnetic field concentration using windmill-like ferromagnets

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dc.contributor.authorBort-Soldevila, Natanaelcs
dc.contributor.authorCunill-Subiranas, Jaumecs
dc.contributor.authorBarrera, Aleixcs
dc.contributor.authorDel-Valle, Nuriacs
dc.contributor.authorSilhanek, Alejandro V.cs
dc.contributor.authorUhlíř, Vojtěchcs
dc.contributor.authorBending, Simoncs
dc.contributor.authorPalau, Annacs
dc.contributor.authorNavau, Carlescs
dc.coverage.issue2cs
dc.coverage.volume12cs
dc.date.accessioned2025-06-19T09:56:20Z
dc.date.available2025-06-19T09:56:20Z
dc.date.issued2024-02-01cs
dc.description.abstractMagnetic sensors are used in many technologies and industries, such as medicine, telecommunications, robotics, the Internet of Things, etc. The sensitivity of these magnetic sensors is a key aspect, as it determines their precision. In this article, we investigate how a thin windmill-like ferromagnetic system can hugely concentrate a magnetic field at its core. A magnetic sensor combined with such a device enhances its sensitivity by a large factor. We describe the different effects that provide this enhancement: the thickness of the device and its unique windmill-like geometry. An expression for the magnetic field in its core is introduced and verified using finite-element calculations. The results show that a high magnetic field concentration is achieved for a low thickness-diameter ratio of the device. Proof-of-concept experiments further demonstrate the significant concentration of the magnetic field when the thickness-diameter ratio is low, reaching levels up to 150 times stronger than the applied field. (c) 2024 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en
dc.formattextcs
dc.format.extent1-7cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationAPL Materials. 2024, vol. 12, issue 2, p. 1-7.en
dc.identifier.doi10.1063/5.0187035cs
dc.identifier.issn2166-532Xcs
dc.identifier.orcid0000-0002-0512-6329cs
dc.identifier.other188936cs
dc.identifier.researcheridE-6860-2011cs
dc.identifier.urihttps://hdl.handle.net/11012/254272
dc.language.isoencs
dc.publisherAIP Publishingcs
dc.relation.ispartofAPL Materialscs
dc.relation.urihttps://pubs.aip.org/aip/apm/article/12/2/021123/3266669/Enhanced-magnetic-field-concentration-usingcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2166-532X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectSENSORSen
dc.titleEnhanced magnetic field concentration using windmill-like ferromagnetsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-188936en
sync.item.dbtypeVAVen
sync.item.insts2025.06.19 11:56:20en
sync.item.modts2025.06.19 11:33:14en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav fyzikálního inženýrstvícs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Nanomagnetismus a spintronikacs
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