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Dispersible Ferromagnetic FePt Nanoparticles
Author(s) -
Kim Jaemin,
Rong Chuanbing,
Liu J. Ping,
Sun Shouheng
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200801620
Subject(s) - materials science , ferromagnetism , coercivity , nanoparticle , magnetism , annealing (glass) , magnetic nanoparticles , nanotechnology , chemical engineering , magnetization , condensed matter physics , metallurgy , magnetic field , quantum mechanics , engineering , physics
A simple method to produce ferromagnetic FePt nanoparticle dispersions by thermal annealing of core/shell‐structured FePt/MgO nanoparticles and removal of MgO in the presence of hexadecanethiol and oleic acid is reported. The ferromagnetic FePt nanoparticles have a room temperature coercivity of 1 T and magnetization of 56.4 emu per gram of FePt, and are suitable for single‐particle magnetism studies and other magnetic applications.