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Effects of Interparticle Interaction in Ferromagnetic Nanoparticle Systems
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
2010 (English)In: Journal of Nanoscience and Nanotechnology, ISSN 1533-4880, E-ISSN 1533-4899, Vol. 10, no 9, 6067-6071 p.Article in journal (Refereed) Published
Abstract [en]

The effect of interparticle interaction in ferromagnetic nanoparticle systems is reviewed focusing on metallic nanoparticles in an insulating host. Strong dipolar interparticle interactions may give rise to a superspin glass phase with dynamical properties radically different from the superparamagnetic relaxation displayed by non-interacting or only weakly interacting nanoparticles. Strong exchange coupling in nanoparticle systems with a volume concentration above the threshold for geometrical percolation induces ferromagnetism.

Place, publisher, year, edition, pages
2010. Vol. 10, no 9, 6067-6071 p.
Keyword [en]
Ferromagnetic Nanoparticles, Dipolar Interaction, Superparamagnets, Superspin Glasses
National Category
Physical Sciences Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-135660DOI: 10.1166/jnn.2010.2591ISI: 000279836400082OAI: oai:DiVA.org:uu-135660DiVA: diva2:375611
Available from: 2010-12-08 Created: 2010-12-07 Last updated: 2017-12-11Bibliographically approved

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Jönsson, Petra E.

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