Measurement of inter-particle interactions in a single magnetic ink aggregate |
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| Institution: | 1. Department of Physics, University of Durham, South Road, Durham, DH1 3LE, UK;2. SEES, University College of North Wales, Dean Street, Bangor, Gwynedd, UK;1. Institute for High Energy Physics of National Research Center “Kurchatov Institute”, Protvino, Moscow Region, 142281, Russia;2. Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow Region, 141701, Russia;1. National Institute for Laser, Plasma and Radiation Physics, Bucharest, Euratom-MEdC Association, Romania;2. Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland;3. Culham Centre for Fusion Energy, Euratom Association, Abingdon, UK;1. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA;2. NOAA/NESDIS/STAR, College Park, MD, USA;3. NASA Goddard Space Flight Center, Greenbelt, MD, USA;4. Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, USA;5. Department of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, UK;6. Centre of Atmospheric and Ocean Studies, University of Allahabad, Allahabad, India |
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| Abstract: | Using an alternating gradient force magnetometer, remanence curves have been recorded from a single aggregate of a commercial ink used in magnetic particle inspection. The aggregates were typically 100x30x30 μm3 size. Analysis of the isothermal and demagnetization remanence magnetization shows that inter-particle interactions within the aggregates act always to lower the magnetization of the aggregate. |
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