PlumX Metrics
Embed PlumX Metrics

Surface anisotropy change of CoFeO nanoparticles depending on thickness of coated SiO shell

Journal of Nanoparticle Research, ISSN: 1572-896X, Vol: 14, Issue: 10
2012
  • 27
    Citations
  • 0
    Usage
  • 35
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    27
    • Citation Indexes
      27
  • Captures
    35

Article Description

We systematically investigated the effective surface anisotropy of CoFeO nanoparticles dependant on the thickness of SiO shell. XRD (X-ray powder diffraction) patterns and TEM (transmission electron microscopy) micrographs were used to investigate the structure of particles and thickness of SiO shell, respectively. The thicknesses of SiO shell with 5.41 nm on CoFeO nanoparticles were increased up to 14.04 ± 0.05 nm by changing the amount of added TEOS by, 0.10, 0.25, 0.50, 1.00, 1.50, and 2.50 mL. The increase of the SiO2 thickness shell decreased the effective anisotropy due to decline the effectiveness of the dipolar magnetostatic interactions, determined from Vogel-Fulcher equation, between the particles. The declines in the Keff values stabled at around 3.76 ± 0.11 9 10 J/m for TEOS amount higher than 1.5 mL. © Springer Science+Business Media Dordrecht 2012.

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know