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Curie temperature enhancement in Fe3C nanoparticles made by laser pyrolysis

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5 Author(s)
Grimes, C.A. ; Dept. of Electr. Eng., Kentucky Univ., Lexington, KY, USA ; Horn, J.L. ; Bush, G.G. ; Allen, J.L.
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We report on the magnetic properties of passivated and unpassivated ferromagnetic Fe3C nanoparticles made by laser pyrolysis. The particles have a Curie temperature well above that measured for the bulk material, and a room temperature coercive force of approximately 600 Oe. The nanoparticles offer the possibility of high temperature magnets, sensors, or materials for temperature dependent EMI shielding

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Magnetics, IEEE Transactions on  (Volume:33 ,  Issue: 5 )