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Stable Colloidal Solutions of High‐Temperature‐Annealed L 1 0 FePt Nanoparticles
Author(s) -
Delattre Anastasia,
Pouget Stéphanie,
Jacquot JeanFrançois,
Samson Yves,
Reiss Peter
Publication year - 2010
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200901805
Subject(s) - colloid , nanoparticle , dissolution , aqueous solution , materials science , ferromagnetism , chemical engineering , salt (chemistry) , molecule , nanotechnology , inorganic chemistry , chemistry , organic chemistry , condensed matter physics , physics , engineering
Stable colloidal solutions of NaCl‐annealed FePt nanoparticles, showing room‐temperature ferromagnetism, are obtained by adding an aqueous solution of cysteine molecules. The latter bind to the nanoparticles' surface during the salt dissolution and provide stabilization of the colloids by electrostatic repulsion