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Electrical Sensing in a Magnetic Liquid
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.ORCID iD: 0000-0001-6066-4616
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.ORCID iD: 0000-0002-6105-1659
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.ORCID iD: 0000-0002-7517-8204
2019 (English)In: IEEE Sensors Journal, ISSN 1530-437X, E-ISSN 1558-1748, Vol. 19, no 16, p. 6948-6955Article in journal (Refereed) Published
Abstract [en]

We have investigated the electrical current transmission characteristics of a magnetic field controlled self-assembled percolated structure of conducting colloid particles. The colloidal liquid contains conducting magnetic and non-magnetic microbeads suspended in an oil-based ferrofluid. The applied in-plane magnetic field is able to precisely control the current transmission. Optical transmission microscopy reveals the local ordering in the liquid with the microparticles forming percolating chains through which the current is transmitted.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2019. Vol. 19, no 16, p. 6948-6955
Keywords [en]
Conducting liquid, electromagnetic assembly, ferrofluid, percolation
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-392128DOI: 10.1109/JSEN.2019.2910727ISI: 000476795500043OAI: oai:DiVA.org:uu-392128DiVA, id: diva2:1348158
Funder
Swedish Research Council, A0505501The Swedish Foundation for International Cooperation in Research and Higher Education (STINT), IG2011-2067Available from: 2019-09-03 Created: 2019-09-03 Last updated: 2019-09-03Bibliographically approved

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Saini, ApurveKapaklis, VassiliosWolff, Max

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