Critical dynamics of an interacting magnetic nanoparticle system
2002 (English)In: Journal of Physics: Condensed Matter, ISSN 0953-8984, E-ISSN 1361-648X, Vol. 14, no 19, 4901- p.Article in journal (Refereed) Published
Effects of dipole-dipole interactions on the magnetic relaxation have been investigated for three Fe-C nanoparticle samples with volume concentrations of 0.06, 5 and 17 vol%. While both the 5 and 17 vol% samples exhibit collective behaviour due to dipolar interactions, only the 17 vol% sample displays critical behaviour close to its transition temperature. The behaviour of the 5 vol% sample can be attributed to a mixture of collective and single-particle dynamics.
Place, publisher, year, edition, pages
2002. Vol. 14, no 19, 4901- p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-89874DOI: 10.1088/0953-8984/14/19/314OAI: oai:DiVA.org:uu-89874DiVA: diva2:161697