Authors: Lennart Häggström Saeed Kamali Tore Ericsson Per Nordblad Anwar Ahniyaz Lennart Bergström
Publish Date: 2008/10/08
Volume: 183, Issue: 1-3, Pages: 49-53
Abstract
Monodisperse iron oxide nanocrystals have been produced following nonhydrolytic 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
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