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Title: Preparation and magnetic properties of L10–FePt/TiO2 nanocomposite thin films
Authors: Kong, Ji-Zhou
Gao, Mo-Yun
Xia, Yi-Dong
Li, Ai-Dong
Zhang, Jun-Long
Gong, You-Pin
Yan, Qin-Yu
Wu, Di
Issue Date: 2012
Source: Kong, J.-Z., Gao, M.-Y., Xia, Y.-D., Li, A.-D., Zhang, J.-L., Gong, Y.-P., et al. (2012). Preparation and magnetic properties of L10–FePt/TiO2 nanocomposite thin films. Journal of Alloys and Compounds, 542, 128-131.
Series/Report no.: Journal of alloys and compounds
Abstract: FePt nanoparticles (NPs) have been encapsulated in the insulating and protective oxide matrix, using a sol–gel process, in order to prevent particles from agglomerating and sintering during the heat-treatment process required for the L10 ordering. The microstructural and ferromagnetic properties of FePt/TiO2 nanocomposites were characterized. The presence of oxide-matrix leads to more homogeneous microstructures and better magnetic properties. The short range positional order of the FePt NPs can be preserved upon annealing at 700 °C to possess higher room-temperature coercivities (HC = 3.7 kOe). Such nanocomposites with assemblies of high-coercivity magnetic nanoparticles are attractive for realizing new types of ultra-high-density data storage devices and magneto-composites.
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2012.07.026
Rights: © 2012 Elsevier B.V.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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