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Magnetic, Structural, and Particle Size Analysis of Single- and Multi-Core Magnetic Nanoparticles
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2014 (English)In: IEEE transactions on magnetics, ISSN 0018-9464, E-ISSN 1941-0069, Vol. 50, no 11, 5300204Article in journal (Refereed) Published
Abstract [en]

We have measured and analyzed three different commercial magnetic nanoparticle systems, both multi-core and single-core in nature, with the particle (core) size ranging from 20 to 100 nm. Complementary analysis methods and same characterization techniques were carried out in different labs and the results are compared with each other. The presented results primarily focus on determining the particle size-both the hydrodynamic size and the individual magnetic core size-as well as magnetic and structural properties. The used analysis methods include transmission electron microscopy, static and dynamic magnetization measurements, and Mossbauer spectroscopy. We show that particle (hydrodynamic and core) size parameters can be determined from different analysis techniques and the individual analysis results agree reasonably well. However, in order to compare size parameters precisely determined from different methods and models, it is crucial to establish standardized analysis methods and models to extract reliable parameters from the data.

Place, publisher, year, edition, pages
2014. Vol. 50, no 11, 5300204
Keyword [en]
Magnetic analysis, magnetic materials, magnetic particles, nanoparticles
National Category
Other Physics Topics Engineering and Technology
URN: urn:nbn:se:uu:diva-247456DOI: 10.1109/TMAG.2014.2321456ISI: 000349465900333OAI: oai:DiVA.org:uu-247456DiVA: diva2:796332
Available from: 2015-03-18 Created: 2015-03-18 Last updated: 2015-11-11Bibliographically approved

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Svedlindh, PeterWetterskog, Erik
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Solid State Physics
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