Small angle scattering for the analysis of magnetic surfacedefects in metallic nanoparticles
We propose continuation to our previous SANS experiment using polarisation analysis to investigate the magnetic structure of several Ni nano particle systems. This will be done in order to establish standards against which magnetometry techniques may be calibrated and to investigate the magnetic dead layer associated with nano particles. Nickel nano particle samples were synthesised via an organically stabilised method at the Johnson-Matthey Sonning Common site. In order to obtain accurate magnetic volumes we will require the use of the polarised 3He spin filter on the d22 instrument, a spin flipper and incident polarised neutrons. Analysis of the magnetic structure will allow for verification of magnetometry based particle sizing and hence the expansion of the technique into industrial applications.
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PAUL Donald Mckenzie; COOK Robert; DEWHURST Charles and Martin R Lees. (2013). Small angle scattering for the analysis of magnetic surfacedefects in metallic nanoparticles. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-32-791
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