|Title||Exchange-coupled hard magnetic Fe-Co/CoPt nanocomposite films fabricated by electro-infiltration|
|Publication Type||Journal Article|
|Year of Publication||2017|
|Authors||Wen, X., J. S. Andrew, and D. P. Arnold|
This paper introduces a potentially scalable electro-infiltration process to produce exchange-coupled hard magnetic nanocomposite thin films. Fe-Co/CoPt nanocompositefilms are fabricated by deposition of CoFe2O4 nanoparticles onto Si substrate, followed by electroplating of CoPt. Samples are subsequently annealed under H2 to reduce the CoFe2O4to magnetically soft Fe-Co and also induce L10 ordering in the CoPt. Resultant films exhibit 0.97 T saturation magnetization, 0.70 T remanent magnetization, 127 kA/m coercivity and 21.8 kJ/m3 maximum energy density. First order reversal curve (FORC) analysis and δM plot are used to prove the exchange coupling between soft and hard magnetic phases.
|Short Title||AIP Advances|