High-Coercivity FePt Nanoparticle Assemblies Embedded in Oxide-Matrix by Atomic Layer Deposition

• Authors: J. Kong , A. Li , M. Gao , Q. Yan , D. Wu
• Languages of publication: EN

Abstracts

EN

Self-assembled face-centered cubic FePt nanoparticles were embedded into the oxide capping layer using the atomic layer deposition technology. The effect of the oxide-matrix layer on the structure, mono-dispersibility, and magnetic properties of the FePt/oxide composite thin films was investigated. Experimental results suggest that the protection of the oxide-matrix capping layer can effectively inhibit the grain growth and particle aggregation, and preserve the ordered domains of the FePt nanoparticles during the L 1_0 ordering transition through annealing. The combination of the atomic layer deposition capping layer and self-assembled FePt nanoparticles provides a new potential approach to fabricate the ultrahigh-density magnetic recording media.

Keywords

EN

75.50.Vv; 75.75.Cd; 75.50.Bb; 75.50.Ss

Discipline

• 75.75.Cd: Fabrication of magnetic nanostructures(see also 81.16.-c Methods of micro- and nanofabrication and processing, and 81.07.-b Nanoscale materials and structures: fabrication and characterization)
• 75.50.Ss: Magnetic recording materials(for magnetic recording devices, see 85.70.Li)
• 75.50.Vv: High coercivity materials
• 75.50.Bb: Fe and its alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 123
• Issue: 2
• Pages: 173-176

Dates

published

2013-02

Contributors

author

J. Kong

• Materials Science and Engineering Department, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P.R. China
• Nanjing University Aeronaut & Astronaut, Academy Frontier Science, Nanjing 210016, P.R. China

author

A. Li

• Materials Science and Engineering Department, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P.R. China

author

M. Gao

• Materials Science and Engineering Department, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P.R. China

author

Q. Yan

• School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798

author

D. Wu

• Materials Science and Engineering Department, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P.R. China

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Identifiers

DOI

10.12693/APhysPolA.123.173