@article{dd6508af0f6e4491a9c870f76ab3a085,
title = "Nanopatterned L10-FePt nanoparticles from single-source metallopolymer precursors for potential application in ferromagnetic bit-patterned media magnetic recording",
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.",
author = "Zhengong Meng and Guijun Li and Ng, {Sheung Mei} and Wong, {Hon Fai} and Yiu, {Sze Chun} and Ho, {Cheuk Lam} and Leung, {Chi Wah} and Wong, {Wai Yeung}",
note = "C.-L. Ho thanks Hong Kong Baptist University (FRG1/13-14/066 and FRG2/13-14/078) the National Natural Science Foundation of China (Grant No. 21504074) and the Science, Technology and Innovation Committee of Shenzhen Municipality (JCYJ20140818163041143) for their financial support. W.-Y. Wong acknowledges the financial support from the National Natural Science Foundation of China (Grant No. 51373145), the Hong Kong Research Grants Council (HKBU203312), the Areas of Excellence Scheme, University Grants Committee of HKSAR (AoE/P-03/08), the Science, Technology and Innovation Committee of Shenzhen Municipality (JCYJ 20140419130507116) and Hong Kong Baptist University (FRG2/13-14/083). S.-C. Yiu acknowledges the support from “Mr Kwok Yat Wai and Madam Kwok Chung Bo Fun Graduate School Development Fund”. C.-W. Leung acknowledges the support of RGC-GRF (The Hong Kong Polytechnic University 153015/14P) and The Hong Kong Polytechnic University (1-ZE25).",
year = "2016",
month = jul,
day = "21",
doi = "10.1039/c6py00714g",
language = "English",
volume = "7",
pages = "4467--4475",
journal = "Polymer Chemistry",
issn = "1759-9954",
publisher = "Royal Society of Chemistry",
number = "27",
}