Eur. Phys. J. Appl. Phys.
Volume 34, Number 3, June 2006
|Page(s)||205 - 208|
|Section||Magnetism and Superconductivity|
|Published online||24 June 2006|
Microstructure and magnetic properties of FePt:C nanocomposite films with low ordering temperature
Faculty of Physics and Electronic Technology and Nanotechnology Research Centre, Hubei University, Wuhan 430062, China
2 Department of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong
3 Department of Physics, The Chinese University of Hong Kong, Hong Kong
Corresponding author: firstname.lastname@example.org
Accepted: 24 March 2006
Published online: 24 June 2006
FePt:C films were prepared by filtered vacuum arc deposition. A strong dependence of coercivity and ordering of the face-central tetragonal structure on both C concentration and annealing temperature was observed. With C concentration of 21%, the sample with a coercivity of 5.7 kOe was obtained when annealing temperature was only 350 °C. Transmission electron microscope observations revealed that FePt grains with an average size of 4.1 nm were embedded in C and appeared to be well isolated.
PACS: 75.30.Gw – Magnetic anisotropy / 75.50.Kj – Amorphous and quasicrystalline magnetic materials / 75.70.Ak – Magnetic properties of monolayers and thin films
© EDP Sciences, 2006
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