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Characterization of Magnetic Nanoparticles Using Energy-Selected Transmission Electron Microscopy

  • María J. Sayagués (a1), Teresa C. Rojas (a1), Asunción Fernández (a1), Rafal E. Dunin-Borkowski (a2) (a3), Ron C. Doole (a2) and John L. Hutchison (a2)...

Abstract

Fe, Co, and Ni magnetic nanoparticles have been characterized using energy-selected imaging in a high-resolution transmission electron microscope. The samples comprised Fe/FeOx and Co/CoOx nanoparticles synthesized by inert gas evaporation and a Ni/C nano-composite prepared by a sonochemical method. All of the particles examined were found to be between 5 and 30 nm in size, with the Fe and Co crystals coated in 5–10 nm of metal oxide layer and the Ni metallic crystallites embedded in an amorphous carbon spherical matrix.

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Corresponding author. E-mail: sayagues@cica.es

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Characterization of Magnetic Nanoparticles Using Energy-Selected Transmission Electron Microscopy

  • María J. Sayagués (a1), Teresa C. Rojas (a1), Asunción Fernández (a1), Rafal E. Dunin-Borkowski (a2) (a3), Ron C. Doole (a2) and John L. Hutchison (a2)...

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