Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/61924
Title: Nanopatterned L10-FePt nanoparticles from single-source metallopolymer precursors for potential application in ferromagnetic bit-patterned media magnetic recording
Authors: Meng, Z
Li, G
Ng, SM
Wong, HF
Yiu, SC
Ho, CL
Leung, CW 
Wong, WY
Issue Date: 2016
Publisher: Royal Society of Chemistry
Source: Polymer chemistry, 2016, v. 7, no. 27, p. 4467-4475 How to cite?
Journal: Polymer chemistry 
Abstract: Bit-patterned media (BPM) with a precise stoichiometry ratio of Fe and Pt atoms are promising for future high areal density magnetic recording. Here, we report a new FePt-containing metallopolymer P as the single-source precursor for the synthesis of magnetic metal alloy nanoparticles. This polymer was synthesized from a random copolymer poly(styrene-4-ethynylstyrene) PES-PS and the bimetallic precursor TPy-FePt ([Pt(4′-ferrocenyl-(N^N^N))Cl]Cl) by the CuI-catalyzed dehydrohalogenation. After pyrolysis of P, the stoichiometry of Fe and Pt atoms in the synthesized nanoparticles is nearly close to 1:1, which is more precise than that by using TPy-FePt as the precursor. Also, polymer P is more suitable for patterning by high-throughput nanoimprint lithography (NIL) compared to TPy-FePt. Ferromagnetic nanolines, potentially useful for fabricating bit-patterned magnetic recording media, were successfully obtained from P and fully characterized.
URI: http://hdl.handle.net/10397/61924
ISSN: 1759-9954
DOI: 10.1039/c6py00714g
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