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  • Title: Substrate effects on surface morphologies and magnetic properties of nanostructured FePt thin films.
    Author: Low PL, Yong BE, Ong BH, Matsumoto M, Tou TY.
    Journal: J Nanosci Nanotechnol; 2011 Mar; 11(3):2640-3. PubMed ID: 21449444.
    Abstract:
    The substrate effects on surface morphologies, crystal structures, and magnetic properties of the sputter-deposited FePt thin films on Corning 1737, normal glass, and Si wafer substrates, respectively, were investigated. High in-plane coercivities of 10 kOe were obtained for the air-annealed films on Corning 1737 and Si wafer, where both films similarly have granular-like morphologies. Besides, increasing grain size and surface roughness of all the FePt films with the post-anneal temperature were observed. Moreover, partially separated grains were seen in the film on Si wafer, where the formation of Fe silicides during post-anneal is suspected, in which has enhanced the magnetic ordering.
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