Mössbauer and magnetisation studies of iron oxide nanocrystals
2008 (English)In: Hyperfine Interactions, ISSN 0304-3843, E-ISSN 1572-9540, Vol. 183, no 1-3, 49-53 p.Article in journal (Refereed) Published
Monodisperse iron oxide nanocrystals have been produced following non-hydrolytic, thermal decomposition routes. Spherically shaped particles with diameter of 4 and 12 nm and cubic shaped particles with an edge length of 9 nm have been studied. The particles have been shown to consist of mainly maghemite. A reduction of the saturation magnetic hyperfine field is observed for the 4 nm particles as compared to the corresponding bulk value. The anisotropy energy determined from the temperature variation of the magnetic hyperfine field was strongly enhanced for the 4 nm particles.
Place, publisher, year, edition, pages
2008. Vol. 183, no 1-3, 49-53 p.
Maghemite nanoparticles, Anisotropy energy, Mössbauer spectroscopy, Magnetization
Other Engineering and Technologies not elsewhere specified
Research subject Physics of Matter
IdentifiersURN: urn:nbn:se:uu:diva-98456DOI: 10.1007/s10751-008-9750-5ISI: 000261061100008OAI: oai:DiVA.org:uu-98456DiVA: diva2:174567