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Polarization Analyzed Small Angle Neutron Scattering Of Ferrite Nanoparticles, Kathryn Hasz
Polarization Analyzed Small Angle Neutron Scattering Of Ferrite Nanoparticles, Kathryn Hasz
Honors Papers
Ferromagnetic nanoparticles offer a range of possible applications in nanotechnology, biomedical practices, and data storage, but important issues exist regarding their true magnetic structure. We have been investigating 9 nm diameter Fe3O4 nanoparticles and 11 nm diameter CoFe2O4 nanoparticles coated with an oleic acid shell. The nanoparticles were synthesized by solution chemistry methods and characterized by X-ray diffraction, SQUID, and vibrating sample magnetometry. Polarization Analyzed Small Angle Neutron Scattering (PASANS) was used under various temperatures and applied magnetic fields to investigate the magnetic structure of the particles. PASANS has revealed the iron oxide particles have a canted magnetic shell in …