Implementation and automation of a Faraday experiment for the magneto-optical characterization of ferrofluids

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dc.citation.journalTitleMEASUREMENT SCIENCE AND TECHNOLOGY
dc.contributor.authorVelásquez, A.A.
dc.contributor.authorUrquijo, J.P.
dc.contributor.departmentUniversidad EAFIT. Departamento de Ciencias Básicas
dc.contributor.researchgroupElectromagnetismo Aplicado (Gema)spa
dc.date.accessioned2021-03-23T21:39:31Z
dc.date.available2021-03-23T21:39:31Z
dc.date.issued2016-01-01
dc.description.abstractThis work presents the design, assembly and automation of a Faraday experiment for use in characterization of the magneto-optical response of fluids and ferrofluids. The magnetooptical Faraday experiment was automated using programmable equipment, controlled through the IEEE-488 port via Standard Commands for Programmable Instruments executed from a graphical interface developed in LabVIEW software. To calibrate the system the Verdet constants of distilled water and isopropyl alcohol were measured, obtaining an error percentage less than 2% for both fluids. Subsequently we used the system for measuring the Verdet constant of a ferrofluid of iron oxide nanoparticles diluted in distilled water, which was synthesized and, before its dilution, characterized by scanning electron microscopy, room temperature Mossbauer spectroscopy and vibrating sample magnetometry. We found that the Verdet constant of the diluted ferrofluid was smaller than that of distilled water, indicating opposite contributions of the effects of the diamagnetic and paramagnetic phases present in the ferrofluid to the magneto-optical effect. Details of the assembly, control of the experiment and development of the measurements are presented in this paper.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1687
dc.identifier.doi10.1088/0957-0233/27/1/015303
dc.identifier.issn9570233spa
dc.identifier.otherWOS;000372457700024
dc.identifier.otherSCOPUS;2-s2.0-84951054156
dc.identifier.urihttp://hdl.handle.net/10784/27153
dc.language.isoengeng
dc.publisherInstitute of Physics Publishing
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84951054156&doi=10.1088%2f0957-0233%2f27%2f1%2f015303&partnerID=40&md5=7bf6f0247d8421caae64f45ecda906bf
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/0957-0233
dc.sourceMEASUREMENT SCIENCE AND TECHNOLOGY
dc.subject.keywordmagneto-optical Faraday effecteng
dc.subject.keywordVerdet constanteng
dc.subject.keywordferrofluideng
dc.subject.keywordMossbauer spectroscopyeng
dc.subject.keywordautomationeng
dc.titleImplementation and automation of a Faraday experiment for the magneto-optical characterization of ferrofluidseng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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