x:TB Tuning the magnetic properties of nanoparticles Gavin Lawes

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x:TB Tuning the magnetic properties of nanoparticles Gavin Lawes Department of Physics and Astronomy Wayne State University The magnetic properties of nanoparticles are largely determined by the product of their volume (V) and intrinsic magnetocrystalline anisotropy (K) through the expression TB~KV, where TB is the magnetic freezing temperature. x:TB Control of magnetic properties by independently changing V and K. x:TB 5 nm CoxFe3-xO4 We can controllably increase TB by a factor of two by tuning the size of the nanoparticles. We can increase K by doping with Co, which increases TB GOAL: To develop techniques to simultaneously tune the dielectric properties of the nanoparticles.