Patterning of L10 FePt nanoparticles with ultra-high coercivity for bit-patterned media

Zhengong Meng, Guijun Li, Hon Fai Wong, Sheung Mei Ng, Sze Chun Yiu, Cheuk Lam Ho*, Chi Wah Leung*, Ian Manners*, Wai Yeung Wong*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

46 Citations (Scopus)


L10-ordered FePt nanoparticles (NPs) with ultra-high coercivity were directly prepared from a new metallopolyyne using a one-step pyrolysis method. The chemical ordering, morphology and magnetic properties of the as-synthesized FePt NPs have been studied. Magnetic measurements show the coercivity of these FePt NPs is as high as 3.6 T. Comparison of NPs synthesized under the Ar and Ar/H2 atmospheres shows that the presence of H2 in the annealing environment influences the nucleation and promotes the growth of L10-FePt NPs. Application of this metallopolymer for bit-patterned media was also demonstrated using nanoimprint lithography.

Original languageEnglish
Pages (from-to)731-738
Number of pages8
Issue number2
Early online date29 Nov 2016
Publication statusPublished - 14 Jan 2017

Scopus Subject Areas

  • Materials Science(all)


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