화학공학소재연구정보센터
Applied Surface Science, Vol.258, No.6, 2124-2128, 2012
The study of magnetic properties and microstructures of nano-size FePt islands on amorphous carbon film
This work focuses on the formation mechanisms of nano-island FePt film on commercial copper grids covered with an amorphous carbon film. FePt films of different thickness (1-7.5 nm) were deposited on amorphous carbon film and then post-annealed at 700 degrees C for 30 min. The configuration of the film was changed during the annealing process due to the surface energy difference between the amorphous carbon films and FePt alloy. We have prepared nanometer-size island-shaped FePt films on the amorphous carbon films and investigated their magnetic properties and microstructures. A discontinuous nano-size island magnetic film can reduce the exchange coupling of the media and increase the recording density. (C) 2011 Elsevier B.V. All rights reserved.