Ion irradiation effects on the magnetic properties of FeO/Fe3N (Iron oxide/Iron Nitride) nanoparticles are investigated in this study. The FeO/Fe3N nanoparticles were prepared using a nanocluster deposition system. The x-ray diffraction data confirms the presence of FeO and Fe3N compounds in the prepared nanoparticles. The saturation magnetization (30 emu/g), coercivity (87.9 Oe) and remanence (3.2 emu/g) of these nanoparticles remain unaltered after irradiation with 2 MeV He+ ions to a fluence of 3E15 ions/cm2 at room temperature, indicating that the magnetic properties of these nanoparticles are not affected in a highly radioactive environment. This unique property of the magnetic stability may provide promising applications for advanced data storage.
Revised: July 25, 2020 |
Published: April 1, 2011
Citation
Sundararajan J.A., D. Zhang, Y. Qiang, W. Jiang, and J.S. McCloy. 2011.Magnetic stability of He+ ion irradiated FeO+Fe3N granular films.Journal of Applied Physics 109, no. 7:07E324: 1 - 3.PNNL-SA-75180.doi:10.1063/1.3560119