Investigation of pyrolysis temperature in the one-step synthesis of L1 0 FePt nanoparticles from a FePt-containing metallopolymer

Ferromagnetic (L1 0 phase) FePt alloy nanoparticles (NPs) with extremely high magnetocrystalline anisotropy are considered to be very promising candidates for the next generation of ultrahigh-density data storage systems. The question of how to generate L1 0 FePt NPs with high coercivity, controllab...

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Bibliographic Details
Published in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2015, Vol.3 (4), p.734-741
Main Authors: Dong, Qingchen, Li, Guijun, Wang, Hua, Wing-Tat Pong, Philip, Leung, Chi-Wah, Manners, Ian, Ho, Cheuk-Lam, Li, Hua, Wong, Wai-Yeung
Format: Article
Language:English
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Summary:Ferromagnetic (L1 0 phase) FePt alloy nanoparticles (NPs) with extremely high magnetocrystalline anisotropy are considered to be very promising candidates for the next generation of ultrahigh-density data storage systems. The question of how to generate L1 0 FePt NPs with high coercivity, controllable size, and a narrow size distribution is a challenge. We report here a single-step fabrication of L1 0 FePt NPs by employing one of the two new polyferroplatinyne bimetallic polymers as precursors. The influence of the pyrolysis temperature on the size and magnetic properties of the resulting FePt alloy NPs has been investigated in detail.
ISSN:2050-7526
2050-7534
DOI:10.1039/C4TC02058H