Jourdain, Vincent Simpson, Edward T. Paillet, Matthieu Kasama, Takeshi Dunin-Borkowski, Rafal E. Poncharal, Philippe Zahab, Ahmed Loiseau, Annick Robertson, John Bernier, Patrick Periodic Inclusion of Room-Temperature-Ferromagnetic Metal Phosphide Nanoparticles in Carbon Nanotubes We demonstrate the use of sequential catalytic growth to encapsulate iron, nickel−iron, and iron−cobalt phosphide catalyst nanoparticles periodically along the entire lengths of carbon nanotubes. Investigations by local electron spectroscopies and electron diffraction reveal the compositions and crystal structures of the encapsulated particles. Significantly, high spatial resolution magnetic characterization using magnetic force microscopy and off-axis electron holography demonstrates that encapsulated iron−cobalt phosphide nanoparticles are ferromagnetic at room temperature, in accordance with the properties of bulk metal phosphides of the same structure and composition. Carbon Nanotubes;electron diffraction;Periodic Inclusion;bulk metal phosphides;electron spectroscopies;crystal structures;force microscopy;encapsulated particles;room temperature;carbon nanotubes;nanoparticle 2006-05-25
    https://acs.figshare.com/articles/journal_contribution/Periodic_Inclusion_of_Room_Temperature_Ferromagnetic_Metal_Phosphide_Nanoparticles_in_Carbon_Nanotubes/3220783
10.1021/jp061181f.s001