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Kim, Byeong-Su
Soft and Hybrid Nanomaterials Lab
Research Interests
  • Carbon materials, polymer, Layer-by-Layer (LbL) assembly, hyperbranched polymer, polyglycerol (PG), bio-applications

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Direct preparation of highly ordered L1(0) phase FePt nanoparticles and their shape-assisted assembly

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Title
Direct preparation of highly ordered L1(0) phase FePt nanoparticles and their shape-assisted assembly
Author
Wang, Jian-PingQiu, Jiao-MingTaton, T. A.Kim, Byeong-Su
Keywords
biomagnetic; direct ordering; FePt; heat assisted recording media; L1(0) phase; magnetic particles; medicine; nanoparticle; patterned media; self-assembly; shape-assisted; SOMA; tilted media
Issue Date
2006-10
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON MAGNETICS, v.42, no.10, pp.3042 - 3047
Abstract
Chemically ordered L1(0) phase FePt nanoparticles has been considered one of the best candidates for future magnetic recording media with areal density beyond 1 Tbit/in(2). However, current preparation methods via phase transformation must overcome many obstacles, including particle agglomeration, twinning and difficulty of easy axis alignment. In this paper, the direct preparation of L1(0) phase FePt nanoparticles without phase transformation and particles' aqueous phase self-assembly are reported. The mechanism for L1(0) phase formation during nucleation and growth processes are discussed. The unique octahedron shape makes these highly ordered FePt nanoparticles even better choice for advanced magnetic recording media because they tend to form tilted and patterned media simultaneously due to the shape effect.
URI
https://scholarworks.unist.ac.kr/handle/201301/9854
DOI
10.1109/TMAG.2006.880150
ISSN
0018-9464
Appears in Collections:
PHY_Journal Papers
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