6533b822fe1ef96bd127d29e

RESEARCH PRODUCT

(2010). Microstructure and magnetic properties of colloidal cobalt nano-clusters.

R TorchioC MeneghiniS MobilioG CapelliniM Garcia PrietoJ AlonsoMl Fdez GubiedaVincenzo Turco LiveriA LongoAngela Monia RuggirelloT. Neisius

subject

cobalt nanoparticles TEM XAFS magnetismSettore CHIM/02 - Chimica Fisica

description

The magnetic response of nanometer sized Co nanoparticles (NP) prepared using reverse micelle solutions are presented. The use of complementary structural and morphological probes (like transmission electron microscopy, high resolution electron microscopy, X-ray absorption spectroscopy) allowed to relate the magnetic properties to the size, morphology, composition and atomic structure of the nanoparticles. All data agree on the presence of a core–shell structure of NPs made of a metallic Co core surrounded by a thin Co-oxide layer. The core–shell microstructure of NPs affects its magnetic response mainly raising the anisotropy constant.

yearjournalcountryeditionlanguage
2010-01-01
10.1016/j.jmmm.2010.07.008http://hdl.handle.net/10447/51225